Cradle of Civilization
Encyclopedia
The cradle of civilization is a term referring to any of the possible locations for the emergence of civilization
Civilization
Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

.
It is usually applied to the Ancient Near East
Ancient Near East
The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia , ancient Egypt, ancient Iran The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia...

ern Chalcolithic (Ubaid period
Ubaid period
The Ubaid period is a prehistoric period of Mesopotamia. The tell of al-`Ubaid west of nearby Ur in southern Iraq's Dhi Qar Governorate has given its name to the prehistoric Pottery Neolithic to Chalcolithic culture, which represents the earliest settlement on the alluvial plain of southern...

, Naqada culture), especially in the Fertile Crescent
Fertile Crescent
The Fertile Crescent, nicknamed "The Cradle of Civilization" for the fact the first civilizations started there, is a crescent-shaped region containing the comparatively moist and fertile land of otherwise arid and semi-arid Western Asia. The term was first used by University of Chicago...

 (Levant
Levant
The Levant or ) is the geographic region and culture zone of the "eastern Mediterranean littoral between Anatolia and Egypt" . The Levant includes most of modern Lebanon, Syria, Jordan, Israel, the Palestinian territories, and sometimes parts of Turkey and Iraq, and corresponds roughly to the...

 and Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

), but also extended to sites in Armenia
Armenia
Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

, and the Persian Plateau, besides other Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

n cultures situated along large river valleys, notably the Indus River
Indus River
The Indus River is a major river which flows through Pakistan. It also has courses through China and India.Originating in the Tibetan plateau of western China in the vicinity of Lake Mansarovar in Tibet Autonomous Region, the river runs a course through the Ladakh district of Jammu and Kashmir and...

 in the Indian Subcontinent
Indian subcontinent
The Indian subcontinent, also Indian Subcontinent, Indo-Pak Subcontinent or South Asian Subcontinent is a region of the Asian continent on the Indian tectonic plate from the Hindu Kush or Hindu Koh, Himalayas and including the Kuen Lun and Karakoram ranges, forming a land mass which extends...

 and the Yellow River
Yellow River
The Yellow River or Huang He, formerly known as the Hwang Ho, is the second-longest river in China and the sixth-longest in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into...

 in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. If writing
History of writing
The history of writing records the development of expressing language by letters or other marks. In the history of how systems of representation of language through graphic means have evolved in different human civilizations, more complete writing systems were preceded by proto-writing, systems of...

 is taken as a prerequisite for civilization, the earliest "cradle" is Sumer
History of Sumer
The history of Sumer, taken to include the prehistoric Ubaid and Uruk periods, spans the 5th to 3rd millennia BC, ending with the downfall of the Third Dynasty of Ur around 2004 BC, followed by a transition period of Amorite states before the rise of Babylonia in the 18th century BC. The first...

 (Jemdet Nasr
Jemdet Nasr
Jemdet Nasr is a tell or settlement mound in Babil Governorate that is best known as the eponymous type site for the Jemdet Nasr period . The site was first excavated in 1926 by Stephen Langdon, who found proto-cuneiform clay tablets in a large mudbrick building thought to be the ancient...

).

Civilization is usually taken to presuppose the presence of agriculture
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

 and urban settlements
City
A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.For example, in the U.S...

, and as such is a consequence of the Neolithic Revolution
Neolithic Revolution
The Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...

. This postulates that there is no single "cradle", but several independent developments of civilization, of which the Near Eastern Neolithic
Neolithic
The Neolithic Age, Era, or Period, or New Stone Age, was a period in the development of human technology, beginning about 9500 BC in some parts of the Middle East, and later in other parts of the world. It is traditionally considered as the last part of the Stone Age...

 was the first. The extent to which there was significant influence between the early civilizations in the Fertile Crescent and East Asia
East Asia
East Asia or Eastern Asia is a subregion of Asia that can be defined in either geographical or cultural terms...

 is disputed, while the civilizations of the Andes
Norte Chico civilization
The Norte Chico civilization was a complex pre-Columbian society that included as many as 30 major population centers in what is now the Norte Chico region of north-central coastal Peru...

 and Mesoamerica
Mesoamerica
Mesoamerica is a region and culture area in the Americas, extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica, within which a number of pre-Columbian societies flourished before the Spanish colonization of the Americas in the 15th and...

 are accepted as having emerged independently from those in Eurasia
Eurasia
Eurasia is a continent or supercontinent comprising the traditional continents of Europe and Asia ; covering about 52,990,000 km2 or about 10.6% of the Earth's surface located primarily in the eastern and northern hemispheres...

.

History of the idea

The concept 'cradle of civilization' is the subject of much debate.

The figurative use of cradle in the sense of "the place or region in which anything is nurtured or sheltered in its earlier stage" is traced by the OED to Spenser
Spenser
Spenser is an alternative spelling of the British surname Spencer. It may refer to:Geographical places with the name Spenser:* Spenser Ecological District in New Zealand* Spenser Mountains, a range in the northern part of South Island, New Zealand...

 (1590). Rollin's Ancient History (1734) has "Egypt that served at first as the cradle of the holy nation."

The phrase "cradle of civilization" plays a certain role in national mysticism
National mysticism
National mysticism is a form of nationalism which raises the nation to the status of numen or divinity. Its best known instance is Germanic mysticism, which gave rise to occultism under the "Third Reich". The idea of the nation as a divine entity was presented by Johann Gottlieb Fichte...

, and has been employed, for example, in Hindu nationalism
Hindu nationalism
Hindu nationalism has been collectively referred to as the expressions of social and political thought, based on the native spiritual and cultural traditions of historical India...

 (In Search of the Cradle of Civilization
In Search of the Cradle of Civilization
In Search of the Cradle of Civilization: New Light on Ancient India is a 1995 book by Georg Feuerstein, Subhash Kak, and David Frawley that argues against the theories that Indo-European peoples arrived in India in the middle of the second millennium BC and supports the concept of "Indigenous...

1995), Taiwanese nationalism
Taiwanese nationalism
Taiwanese nationalism is a political movement to establish Taiwan as a nation. It is closely linked to Taiwan independence but distinguished from it in that the independence movement seeks to eventually establish an independent Republic of Taiwan in place of or out of the Republic of China, while...

 (Taiwan — The Cradle of Civilization 2002), but also in esoteric pseudohistory
Pseudohistory
Pseudohistory is a pejorative term applied to a type of historical revisionism, often involving sensational claims whose acceptance would require rewriting a significant amount of commonly accepted history, and based on methods that depart from standard historiographical conventions.Cryptohistory...

 such as the Urantia Book claiming the title for "the second Eden" or pseudoarchaeology
Pseudoarchaeology
Pseudoarchaeology — also known as alternative archaeology, fringe archaeology, fantastic archaeology, or cult archaeology — refers to interpretations of the past from outside of the academic archaeological community, which typically also reject the accepted scientific and analytical methods of the...

 surrounding Megalithic Britain (Civilization One 2004,
Ancient Britain: The Cradle of Civilization 1921).

The Columbia Encyclopedia
Columbia Encyclopedia
The Columbia Encyclopedia is a one-volume encyclopedia produced by Columbia University Press and sold by the Gale Group. First published in 1935, and continuing its important relationship with Columbia University, the encyclopedia underwent major revisions in 1950 and 1963; the current edition is...

in its article titled "civilization
Civilization
Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

" described the earliest civilizations developed in the following parts of the world: "Mesopotamia, Egypt, China, India, the central Andes, and Mesoamerica."

The Encarta
Encarta
Microsoft Encarta was a digital multimedia encyclopedia published by Microsoft Corporation from 1993 to 2009. , the complete English version, Encarta Premium, consisted of more than 62,000 articles, numerous photos and illustrations, music clips, videos, interactive contents, timelines, maps and...

in its article about the development of early civilizations states: "some of these civilizations are the Andean one, which originated about 800 BC; the Mexican (about the 3rd century BC); the Far Eastern, which originated in China about 2200 BC and spread to Japan about AD 600; the Indian (about 1500 BC); the Egyptian (about 3000 BC); the Sumerian (about 4000 BC); followed by the Babylonian (about 1700 BC); the Minoan (about 2000 BC); the Semitic (about 1500 BC); the Greco-Roman (about 1100 BC)..."

In the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 and Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, the AP World History
AP World History
Advanced Placement World History is a college-level course offered through the College Board's Advanced Placement Program designed to help students develop greater understanding of the evolution of global processes and contacts and interactions between different types of Human societies...

 teaches the six early civilizations as the foundation of human culture are: "Mesopotamia, Egypt, Indus, Shang (or Yellow River valley), Mesoamerica and Andean South America. These "civilizations" are also discussed in this article.

Rise of civilization

The earliest signs of a sedentarization process can be traced back to the Levant
Levant
The Levant or ) is the geographic region and culture zone of the "eastern Mediterranean littoral between Anatolia and Egypt" . The Levant includes most of modern Lebanon, Syria, Jordan, Israel, the Palestinian territories, and sometimes parts of Turkey and Iraq, and corresponds roughly to the...

 to as early as 12000 BC, when the Natufian culture
Natufian culture
The Natufian culture was a Mesolithic culture that existed from 12,500 to 9,500 BC in the Levant, a region in the Eastern Mediterranean. It was unusual in that it was sedentary, or semi-sedentary, before the introduction of agriculture...

 became sedentary and evolved into an agricultural society by 10000 BC. The importance of water to safeguard an abundant and stable food supply, due to favourable conditions for hunting, fishing and gathering resources including cereals, provided an initial wide spectrum economy that triggered the creation of permanent villages.

The earliest proto-urban settlements with several thousand inhabitants emerge in the Neolithic
Neolithic
The Neolithic Age, Era, or Period, or New Stone Age, was a period in the development of human technology, beginning about 9500 BC in some parts of the Middle East, and later in other parts of the world. It is traditionally considered as the last part of the Stone Age...

, while the first cities to house several tens of thousands were Memphis
Memphis, Egypt
Memphis was the ancient capital of Aneb-Hetch, the first nome of Lower Egypt. Its ruins are located near the town of Helwan, south of Cairo.According to legend related by Manetho, the city was founded by the pharaoh Menes around 3000 BC. Capital of Egypt during the Old Kingdom, it remained an...

 and Uruk
Uruk
Uruk was an ancient city of Sumer and later Babylonia, situated east of the present bed of the Euphrates river, on the ancient dry former channel of the Euphrates River, some 30 km east of modern As-Samawah, Al-Muthannā, Iraq.Uruk gave its name to the Uruk...

, by the 31st century BC
31st century BC
-Events:*c. 3100 BC: Narmer unifies Upper and Lower Egypt into one country; he rules this new country from Memphis.*c. 3100 BC: Narmer, pharaoh, rules .)...

 (see Historical urban community sizes
Historical urban community sizes
Estimated populations of historical cities over time.-Neolithic settlements:-Bronze Age:-Iron Age:-Middle Ages:-Early Modern era:-20th century:-See also:*World population*Urbanism*List of metropolitan areas by population...

).

Historic times are marked apart from prehistoric times when "records of the past begin to be kept for the benefit of future generations"; that is, with the development of writing
History of writing
The history of writing records the development of expressing language by letters or other marks. In the history of how systems of representation of language through graphic means have evolved in different human civilizations, more complete writing systems were preceded by proto-writing, systems of...

. If the rise of civilization is taken to coincide with the development of writing out of proto-writing, the Near Eastern Chalcolithic, the transitional period between the Neolithic
Neolithic
The Neolithic Age, Era, or Period, or New Stone Age, was a period in the development of human technology, beginning about 9500 BC in some parts of the Middle East, and later in other parts of the world. It is traditionally considered as the last part of the Stone Age...

 and the Bronze Age
Bronze Age
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 during the 4th millennium BC
4th millennium BC
The 4th millennium BC saw major changes in human culture. It marked the beginning of the Bronze Age and of writing.The city states of Sumer and the kingdom of Egypt were established and grew to prominence. Agriculture spread widely across Eurasia...

 is the earliest incidence, paralleled by Chinese proto-writing
Neolithic signs in China
Since the second half of the 20th century, inscriptions have been found on pottery in a variety of locations in China, such as Banpo near Xi'an, as well as on bone and bone marrows at Hualouzi, Chang'an County near Xi'an...

 evolving into the Oracle bone script
Oracle bone script
Oracle bone script refers to incised ancient Chinese characters found on oracle bones, which are animal bones or turtle shells used in divination in Bronze Age China...

 by the beginning of the Chinese Bronze Age from around 1200 BC, and again by the emergence of Mesoamerican writing systems
Mesoamerican writing systems
Mesoamerica, like India, Mesopotamia, China, and Egypt, is one of the few places in the world where writing has developed independently. Mesoamerican scripts deciphered to date are logosyllabic, combining the use of logograms with a syllabary, and they are often called hieroglyphic scripts...

 from about 200 BC.

In the absence of written documents, most aspects of the rise of early civilizations are contained in archaeological assessments involving the development of formal institutions and the material culture. A "civilized" way of life is ultimately linked to conditions coming almost exclusively from intensive agriculture. Gordon Childe defined the development of civilization as the result of two successive revolutions: the Neolithic Revolution
Neolithic Revolution
The Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...

, triggering the development of settled communities, and the Urban Revolution
Urban revolution
In anthropology and archaeology, the Urban Revolution is the process by which small, kin-based, nonliterate agricultural villages were transformed into large, socially complex, urban societies....

 that enhanced tendencies towards dense settlements, specialized occupational groups, social classes, exploitation of surpluses, monumental public buildings and writing. Few of those conditions, however, are unchallenged by the records: dense settlements were not attested in Egypt's Old Kingdom and absent in the Maya
Maya civilization
The Maya is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as for its art, architecture, and mathematical and astronomical systems. Initially established during the Pre-Classic period The Maya is a Mesoamerican...

 area, the Incas lacked writing altogether and often monumental architecture precede any indication of village settlement at all. Rather than a succession of events and preconditions, the rise of civilization could equally be hypothesized as an accelerated process that started with incipient agriculture and culminated in the Oriental Bronze Age.

Single or multiple cradles

A traditional theory of the spread of civilization is that it began in the Fertile Crescent and spread out from there by influence. This consistent "Cradle of Civilization" concept is contradicted by the occurrence of shared essential features of civilization met independently on both hemispheres, and by the observation of a both gradual and irregular succession of different focuses regarding sociocultural developments and geographical spread. "Sedentary" and "nomadic" communities continued to interact considerably and cannot always be neatly separated along polar dividing lines between widely different cultural groups. The concept reduces to a convenient focus where the inhabitants came to build cities, to create writing systems, to experiment in techniques for making pottery
Pottery
Pottery is the material from which the potteryware is made, of which major types include earthenware, stoneware and porcelain. The place where such wares are made is also called a pottery . Pottery also refers to the art or craft of the potter or the manufacture of pottery...

 and using metals
Metalworking
Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts and delicate jewelry. It therefore includes a correspondingly wide range of skills,...

, to domesticate animals
Domestication
Domestication or taming is the process whereby a population of animals or plants, through a process of selection, becomes accustomed to human provision and control. In the Convention on Biological Diversity a domesticated species is defined as a 'species in which the evolutionary process has been...

, and to develop complex social structure
Social structure
Social structure is a term used in the social sciences to refer to patterned social arrangements in society that are both emergent from and determinant of the actions of the individuals. The usage of the term "social structure" has changed over time and may reflect the various levels of analysis...

s involving class systems.

Mesopotamia

Historically, the ancient city states of Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

 in the fertile crescent
Fertile Crescent
The Fertile Crescent, nicknamed "The Cradle of Civilization" for the fact the first civilizations started there, is a crescent-shaped region containing the comparatively moist and fertile land of otherwise arid and semi-arid Western Asia. The term was first used by University of Chicago...

 are most cited by Western and Middle East
Middle East
The Middle East is a region that encompasses Western Asia and Northern Africa. It is often used as a synonym for Near East, in opposition to Far East...

ern scholars as the cradle of civilization. The convergence of the Tigris and Euphrates Rivers produced rich fertile soil and a supply of water for irrigation. The civilizations that emerged around these rivers are among the earliest known non-nomadic agrarian societies. Because Ubaid, Sumer
Sumer
Sumer was a civilization and historical region in southern Mesopotamia, modern Iraq during the Chalcolithic and Early Bronze Age....

, Akkad
Akkad
The Akkadian Empire was an empire centered in the city of Akkad and its surrounding region in Mesopotamia....

, Assyria
Assyria
Assyria was a Semitic Akkadian kingdom, extant as a nation state from the mid–23rd century BC to 608 BC centred on the Upper Tigris river, in northern Mesopotamia , that came to rule regional empires a number of times through history. It was named for its original capital, the ancient city of Assur...

 and Babylon
Babylon
Babylon was an Akkadian city-state of ancient Mesopotamia, the remains of which are found in present-day Al Hillah, Babil Province, Iraq, about 85 kilometers south of Baghdad...

 civilizations all emerged around the Tigris
Tigris
The Tigris River is the eastern member of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of southeastern Turkey through Iraq.-Geography:...

-Euphrates
Euphrates
The Euphrates is the longest and one of the most historically important rivers of Western Asia. Together with the Tigris, it is one of the two defining rivers of Mesopotamia...

, the theory that Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

 is the cradle of civilization has enjoyed some credence.

The Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

n civilization of Sumer
Sumer
Sumer was a civilization and historical region in southern Mesopotamia, modern Iraq during the Chalcolithic and Early Bronze Age....

 emerges in the Ubaid
Ubaid period
The Ubaid period is a prehistoric period of Mesopotamia. The tell of al-`Ubaid west of nearby Ur in southern Iraq's Dhi Qar Governorate has given its name to the prehistoric Pottery Neolithic to Chalcolithic culture, which represents the earliest settlement on the alluvial plain of southern...

 and Uruk
Uruk period
The Uruk period existed from the protohistoric Chalcolithic to Early Bronze Age period in the history of Mesopotamia, following the Ubaid period and succeeded by the Jemdet Nasr period. Named after the Sumerian city of Uruk, this period saw the emergence of urban life in Mesopotamia. It was...

 periods, culminating in the mid 3rd millennium before giving rise to the Akkadian Empire in the 23rd century BC, often identified as the first empire
Empire
The term empire derives from the Latin imperium . Politically, an empire is a geographically extensive group of states and peoples united and ruled either by a monarch or an oligarchy....

 in history.

Eridu
Eridu
Eridu is an ancient Sumerian city in what is now Tell Abu Shahrain, Dhi Qar Governorate, Iraq. Eridu was considered the earliest city in southern Mesopotamia, and is one of the oldest cities in the world...

 was the oldest Sumerian site, settled during the proto-civilized Ubaid period. Situated several miles southwest of Ur
Ur
Ur was an important city-state in ancient Sumer located at the site of modern Tell el-Muqayyar in Iraq's Dhi Qar Governorate...

, Eridu
Eridu
Eridu is an ancient Sumerian city in what is now Tell Abu Shahrain, Dhi Qar Governorate, Iraq. Eridu was considered the earliest city in southern Mesopotamia, and is one of the oldest cities in the world...

 was the southernmost of a conglomeration of early temple
Temple
A temple is a structure reserved for religious or spiritual activities, such as prayer and sacrifice, or analogous rites. A templum constituted a sacred precinct as defined by a priest, or augur. It has the same root as the word "template," a plan in preparation of the building that was marked out...

-cities, in Sumer
Sumer
Sumer was a civilization and historical region in southern Mesopotamia, modern Iraq during the Chalcolithic and Early Bronze Age....

, southern Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

, with the earliest of these settlement
Hamlet
The Tragical History of Hamlet, Prince of Denmark, or more simply Hamlet, is a tragedy by William Shakespeare, believed to have been written between 1599 and 1601...

s dating to around 5000 BC. By the 4th millennium BC in Nippur
Nippur
Nippur was one of the most ancient of all the Sumerian cities. It was the special seat of the worship of the Sumerian god Enlil, the "Lord Wind," ruler of the cosmos subject to An alone...

 we find — in connection with a sort of ziggurat
Ziggurat
Ziggurats were massive structures built in the ancient Mesopotamian valley and western Iranian plateau, having the form of a terraced step pyramid of successively receding stories or levels.Notable ziggurats include the Great Ziggurat of Ur near Nasiriyah, Iraq; the Ziggurat of Aqar Quf near...

 and shrine
Shrine
A shrine is a holy or sacred place, which is dedicated to a specific deity, ancestor, hero, martyr, saint, daemon or similar figure of awe and respect, at which they are venerated or worshipped. Shrines often contain idols, relics, or other such objects associated with the figure being venerated....

 — a conduit built of brick
Brick
A brick is a block of ceramic material used in masonry construction, usually laid using various kinds of mortar. It has been regarded as one of the longest lasting and strongest building materials used throughout history.-History:...

s in the form of an arch
Arch
An arch is a structure that spans a space and supports a load. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture and their systematic use started with the Ancient Romans who were the first to apply the technique to a wide range of structures.-Technical aspects:The...

. Sumer
Sumer
Sumer was a civilization and historical region in southern Mesopotamia, modern Iraq during the Chalcolithic and Early Bronze Age....

ian inscriptions written on clay
Clay
Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic matter. Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.- Formation :Clay minerals...

 also appear in Nippur. By 4000 BC an ancient Elam
Elam
Elam was an ancient civilization located in what is now southwest Iran. Elam was centered in the far west and the southwest of modern-day Iran, stretching from the lowlands of Khuzestan and Ilam Province, as well as a small part of southern Iraq...

ite city
City
A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.For example, in the U.S...

 of Susa
Susa
Susa was an ancient city of the Elamite, Persian and Parthian empires of Iran. It is located in the lower Zagros Mountains about east of the Tigris River, between the Karkheh and Dez Rivers....

, in Mesopotamia
Mesopotamia
Mesopotamia is a toponym for the area of the Tigris–Euphrates river system, largely corresponding to modern-day Iraq, northeastern Syria, southeastern Turkey and southwestern Iran.Widely considered to be the cradle of civilization, Bronze Age Mesopotamia included Sumer and the...

, also seems to emerge from earlier village
Village
A village is a clustered human settlement or community, larger than a hamlet with the population ranging from a few hundred to a few thousand , Though often located in rural areas, the term urban village is also applied to certain urban neighbourhoods, such as the West Village in Manhattan, New...

s. Whilst the Elamites originally had their own script, from an early age they adapted the Sumerian cuneiform script to their own language. The earliest recognizable cuneiform dates to no later than about 3500 BC. Other villages that began to spring up around this time in the Ancient Near East
Ancient Near East
The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia , ancient Egypt, ancient Iran The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia...

 (Middle East
Middle East
The Middle East is a region that encompasses Western Asia and Northern Africa. It is often used as a synonym for Near East, in opposition to Far East...

) were greatly impacted and shifted rapidly from a proto-civilized to a fully civilized state (e.g. Ebla
Ebla
Ebla Idlib Governorate, Syria) was an ancient city about southwest of Aleppo. It was an important city-state in two periods, first in the late third millennium BC, then again between 1800 and 1650 BC....

, Mari
Mari, Syria
Mari was an ancient Sumerian and Amorite city, located 11 kilometers north-west of the modern town of Abu Kamal on the western bank of Euphrates river, some 120 km southeast of Deir ez-Zor, Syria...

 and Assur
Assur
Assur , was one of the capitals of ancient Assyria. The remains of the city are situated on the western bank of river Tigris, north of the confluence with the tributary Little Zab river, in modern day Iraq, more precisely in the Al-Shirqat District .Assur is also...

).

Egypt

The rise of dynastic Egypt in the Nile Valley occurred with the unification of Upper and Lower Egypt in approximately 3200 BC, and ended at around 343 BC, at the start of the Achaemenid dynasty's control of Egypt. It is one of the three oldest civilizations in the world. Anthropological
Anthropology
Anthropology is the study of humanity. It has origins in the humanities, the natural sciences, and the social sciences. The term "anthropology" is from the Greek anthrōpos , "man", understood to mean mankind or humanity, and -logia , "discourse" or "study", and was first used in 1501 by German...

 and archaeological
Archaeology
Archaeology, or archeology , is the study of human society, primarily through the recovery and analysis of the material culture and environmental data that they have left behind, which includes artifacts, architecture, biofacts and cultural landscapes...

 evidence both indicate that the Kubbaniya culture was a grain
Cereal
Cereals are grasses cultivated for the edible components of their grain , composed of the endosperm, germ, and bran...

-grinding culture farming along the Nile
Nile
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is long. It runs through the ten countries of Sudan, South Sudan, Burundi, Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.The Nile has two major...

 before the 10th millennium BC using sickle blades. But another culture of hunters
Hunting
Hunting is the practice of pursuing any living thing, usually wildlife, for food, recreation, or trade. In present-day use, the term refers to lawful hunting, as distinguished from poaching, which is the killing, trapping or capture of the hunted species contrary to applicable law...

, fishers
Fishing
Fishing is the activity of trying to catch wild fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping....

 and gathering
Hunter-gatherer
A hunter-gatherer or forage society is one in which most or all food is obtained from wild plants and animals, in contrast to agricultural societies which rely mainly on domesticated species. Hunting and gathering was the ancestral subsistence mode of Homo, and all modern humans were...

 peoples using stone tool
Stone tool
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric, particularly Stone Age cultures that have become extinct...

s replaced them. Evidence also indicates human habitation in the southwestern corner of Egypt, near the Sudan
Sudan
Sudan , officially the Republic of the Sudan , is a country in North Africa, sometimes considered part of the Middle East politically. It is bordered by Egypt to the north, the Red Sea to the northeast, Eritrea and Ethiopia to the east, South Sudan to the south, the Central African Republic to the...

 border, before 8000 BC. From around 7000 BC to 3000 BC the climate of the Sahara was much moister, offering good grazing land even in areas that are now very arid. Natural climate change after 3000 BC led to progressive arification of the region. It has been suggested that as a result of these changes, around 2500 BC early tribes from the Sahara were forced to concentrate along the Nile
Nile
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is long. It runs through the ten countries of Sudan, South Sudan, Burundi, Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.The Nile has two major...

 river where they developed a settled agricultural
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

 economy
Economic system
An economic system is the combination of the various agencies, entities that provide the economic structure that defines the social community. These agencies are joined by lines of trade and exchange along which goods, money etc. are continuously flowing. An example of such a system for a closed...

 and more centralized society
Society
A society, or a human society, is a group of people related to each other through persistent relations, or a large social grouping sharing the same geographical or virtual territory, subject to the same political authority and dominant cultural expectations...

. However it should be borne in mind that indigenous tribes would always have been present in the fertile Nile Valley and may have developed complex societies by themselves. Domesticated animals had already been imported from Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

 between 7500 BC and 4000 BC (see Sahara: History, Cattle period), and there is evidence of pastoralism
Pastoralism
Pastoralism or pastoral farming is the branch of agriculture concerned with the raising of livestock. It is animal husbandry: the care, tending and use of animals such as camels, goats, cattle, yaks, llamas, and sheep. It may have a mobile aspect, moving the herds in search of fresh pasture and...

 and cultivation of cereal
Cereal
Cereals are grasses cultivated for the edible components of their grain , composed of the endosperm, germ, and bran...

s in the East Sahara
Sahara
The Sahara is the world's second largest desert, after Antarctica. At over , it covers most of Northern Africa, making it almost as large as Europe or the United States. The Sahara stretches from the Red Sea, including parts of the Mediterranean coasts, to the outskirts of the Atlantic Ocean...

 in the 7th millennium BC.

By 6000 BC predynastic Egypt
Predynastic Egypt
The Prehistory of Egypt spans the period of earliest human settlement to the beginning of the Early Dynastic Period of Egypt in ca. 3100 BC, starting with King Menes/Narmer....

ians in the southwestern corner of Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

 were herding
Herding
Herding is the act of bringing individual animals together into a group , maintaining the group and moving the group from place to place—or any combination of those. While the layperson uses the term "herding", most individuals involved in the process term it mustering, "working stock" or...

 cattle. Symbols on Gerzean
Gerzeh
Gerzeh, also Girza or Jirzah, was a predynastic Egyptian cemetery located along the west bank of the Nile and today named after al-Girza, the nearby present day town in Egypt. Gerzeh is situated only several miles due east of the lake of the Al Fayyum.The Gerzean culture is a material culture...

 pottery, c.4th millennium BC, resemble traditional hieroglyph writing. In ancient Egypt
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

 mortar
Mortar (masonry)
Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The blocks may be stone, brick, cinder blocks, etc. Mortar becomes hard when it sets, resulting in a rigid aggregate structure. Modern mortars are typically made from a mixture of sand, a binder...

 was in use by 4000 BC, and ancient Egyptians were producing ceramic
Ceramic
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous...

 faience
Faience
Faience or faïence is the conventional name in English for fine tin-glazed pottery on a delicate pale buff earthenware body, originally associated with Faenza in northern Italy. The invention of a white pottery glaze suitable for painted decoration, by the addition of an oxide of tin to the slip...

 as early as 3500 BC. There is evidence that ancient Egyptian explorers
Exploration
Exploration is the act of searching or traveling around a terrain for the purpose of discovery of resources or information. Exploration occurs in all non-sessile animal species, including humans...

 may have originally cleared and protected some branches of the Silk Road
Silk Road
The Silk Road or Silk Route refers to a historical network of interlinking trade routes across the Afro-Eurasian landmass that connected East, South, and Western Asia with the Mediterranean and European world, as well as parts of North and East Africa...

. Medical institutions
Ancient Egyptian medicine
The medicine of the ancient Egyptians is some of the oldest documented. From the beginnings of the civilization in the until the Persian invasion of 525 BC, Egyptian medical practice went largely unchanged and was highly advanced for its time, including simple non-invasive surgery, setting of...

 are known to have been established in Egypt since as early as circa 3000 BC. Ancient Egypt gains credit for the tallest ancient pyramids
Egyptian pyramids
The Egyptian pyramids are ancient pyramid-shaped masonry structures located in Egypt.There are 138 pyramids discovered in Egypt as of 2008. Most were built as tombs for the country's Pharaohs and their consorts during the Old and Middle Kingdom periods.The earliest known Egyptian pyramids are found...

 and early forms of surgery
Surgery
Surgery is an ancient medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, or to help improve bodily function or appearance.An act of performing surgery may be called a surgical...

, mathematics
Timeline of mathematics
A timeline of pure and applied mathematics history.-Before 1000 BC:* ca. 70,000 BC — South Africa, ochre rocks adorned with scratched geometric patterns.* ca. 35,000 BC to 20,000 BC — Africa and France, earliest known prehistoric attempts to quantify time....

, and barge
Barge
A barge is a flat-bottomed boat, built mainly for river and canal transport of heavy goods. Some barges are not self-propelled and need to be towed by tugboats or pushed by towboats...

 transport.

Indus Valley

The earliest-known farming culture
Culture
Culture is a term that has many different inter-related meanings. For example, in 1952, Alfred Kroeber and Clyde Kluckhohn compiled a list of 164 definitions of "culture" in Culture: A Critical Review of Concepts and Definitions...

s in the South Asia
South Asia
South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 emerged in Pakistan
Pakistan
Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

 in the hills of Balochistan
Balochistan (Pakistan)
Balochistan is one of the four provinces or federating units of Pakistan. With an area of 134,051 mi2 or , it is the largest province of Pakistan, constituting approximately 44% of the total land mass of Pakistan. According to the 1998 population census, Balochistan had a population of...

, on the border between modern-day Pakistan and Iran. These semi-nomadic peoples domesticated wheat
Wheat
Wheat is a cereal grain, originally from the Levant region of the Near East, but now cultivated worldwide. In 2007 world production of wheat was 607 million tons, making it the third most-produced cereal after maize and rice...

, barley
Barley
Barley is a major cereal grain, a member of the grass family. It serves as a major animal fodder, as a base malt for beer and certain distilled beverages, and as a component of various health foods...

, sheep, goat
Goat
The domestic goat is a subspecies of goat domesticated from the wild goat of southwest Asia and Eastern Europe. The goat is a member of the Bovidae family and is closely related to the sheep as both are in the goat-antelope subfamily Caprinae. There are over three hundred distinct breeds of...

 and cattle
Cattle
Cattle are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos primigenius...

. Pottery
Pottery
Pottery is the material from which the potteryware is made, of which major types include earthenware, stoneware and porcelain. The place where such wares are made is also called a pottery . Pottery also refers to the art or craft of the potter or the manufacture of pottery...

 was in use by the 6th millennium BC. The oldest granary
Granary
A granary is a storehouse for threshed grain or animal feed. In ancient or primitive granaries, pottery is the most common use of storage in these buildings. Granaries are often built above the ground to keep the stored food away from mice and other animals.-Early origins:From ancient times grain...

 yet found in this region was the Mehrgarh
Mehrgarh
Mehrgarh , one of the most important Neolithic sites in archaeology, lies on the "Kachi plain" of Balochistan, Pakistan...

 in the Indus Valley.

Their settlement
Hamlet
The Tragical History of Hamlet, Prince of Denmark, or more simply Hamlet, is a tragedy by William Shakespeare, believed to have been written between 1599 and 1601...

 consisted of mud buildings that housed four internal subdivisions. Burial
Burial
Burial is the act of placing a person or object into the ground. This is accomplished by excavating a pit or trench, placing an object in it, and covering it over.-History:...

s included elaborate goods such as basket
Basket
A basket is a container which is traditionally constructed from stiff fibres, which can be made from a range of materials, including wood splints, runners, and cane. While most baskets are made from plant materials, other materials such as horsehair, baleen, or metal wire can be used. Baskets are...

s, stone and bone tool
Tool
A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process with a specific purpose. Tools that are used in particular fields or activities may have different designations such...

s, bead
Bead
A bead is a small, decorative object that is usually pierced for threading or stringing. Beads range in size from under to over in diameter. A pair of beads made from Nassarius sea snail shells, approximately 100,000 years old, are thought to be the earliest known examples of jewellery. Beadwork...

s, bangle
Bangle
Bangles or churi are traditional ornaments worn mostly by South Asian women in India and Bangladesh, especially Hindus. It is tradition that the bride will try to wear as many small glass bangles as possible at her wedding and the honeymoon will end when the last bangle breaks...

s, pendant
Pendant
A pendant is a loose-hanging piece of jewellery, generally attached by a small loop to a necklace, when the ensemble may be known as a "pendant necklace". A pendant earring is an earring with a piece hanging down. In modern French "pendant" is the gerund form of “hanging”...

s and occasionally animal sacrifice
Animal sacrifice
Animal sacrifice is the ritual killing of an animal as part of a religion. It is practised by many religions as a means of appeasing a god or gods or changing the course of nature...

s. Figurine
Figurine
A figurine is a statuette that represents a human, deity or animal. Figurines may be realistic or iconic, depending on the skill and intention of the creator. The earliest were made of stone or clay...

s and ornaments of sea shell, limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

, turquoise
Turquoise
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula CuAl648·4. It is rare and valuable in finer grades and has been prized as a gem and ornamental stone for thousands of years owing to its unique hue...

, lapis lazuli
Lapis lazuli
Lapis lazuli is a relatively rare semi-precious stone that has been prized since antiquity for its intense blue color....

, sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

 and polished copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 have been found. By the 4th millennium BC, Technologies
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...

 included stone and copper drill
Drill
A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or fastening various materials together with the use of fasteners. The attachment is gripped by a chuck at one end of...

s, updraft kiln
Kiln
A kiln is a thermally insulated chamber, or oven, in which a controlled temperature regime is produced. Uses include the hardening, burning or drying of materials...

s, large pit kilns and copper melting crucible
Crucible
A crucible is a container used for metal, glass, and pigment production as well as a number of modern laboratory processes, which can withstand temperatures high enough to melt or otherwise alter its contents...

s. Button seals
Seal (device)
A seal can be a figure impressed in wax, clay, or some other medium, or embossed on paper, with the purpose of authenticating a document ; but the term can also mean the device for making such impressions, being essentially a mould with the mirror image of the design carved in sunken- relief or...

 included geometric designs.

By 4000 BC, a pre-Harappa
Harappa
Harappa is an archaeological site in Punjab, northeast Pakistan, about west of Sahiwal. The site takes its name from a modern village located near the former course of the Ravi River. The current village of Harappa is from the ancient site. Although modern Harappa has a train station left from...

n culture emerged, with trade
Trade
Trade is the transfer of ownership of goods and services from one person or entity to another. Trade is sometimes loosely called commerce or financial transaction or barter. A network that allows trade is called a market. The original form of trade was barter, the direct exchange of goods and...

 networks including lapis lazuli
Lapis lazuli
Lapis lazuli is a relatively rare semi-precious stone that has been prized since antiquity for its intense blue color....

 and other raw materials. The Indus civilization is known to have comprised two large cities, Harappa and Mohenjo-daro, and more than 100 towns and villages, often of relatively small size. The two cities were perhaps originally about a mile square in overall dimensions, and their outstanding magnitude suggests political centralization, either in two large states or in a single great empire with alternative capitals. Or it may be that Harappa succeeded Mohenjo-daro, which is known to have been devastated more than once by exceptional floods. The southern region of the civilization in Kathiawar and beyond appears to be of later origin than the major Indus sites. Village
Village
A village is a clustered human settlement or community, larger than a hamlet with the population ranging from a few hundred to a few thousand , Though often located in rural areas, the term urban village is also applied to certain urban neighbourhoods, such as the West Village in Manhattan, New...

rs also grew numerous other crops, including pea
Pea
A pea is most commonly the small spherical seed or the seed-pod of the pod fruit Pisum sativum. Each pod contains several peas. Peapods are botanically a fruit, since they contain seeds developed from the ovary of a flower. However, peas are considered to be a vegetable in cooking...

s, sesame seed, dates, and cotton
Cotton
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium. The fiber is almost pure cellulose. The botanical purpose of cotton fiber is to aid in seed dispersal....

. The Indus valley civilization
Indus Valley Civilization
The Indus Valley Civilization was a Bronze Age civilization that was located in the northwestern region of the Indian subcontinent, consisting of what is now mainly modern-day Pakistan and northwest India...

 is credited for a regular and consistent use of decimal fractions
Decimal
The decimal numeral system has ten as its base. It is the numerical base most widely used by modern civilizations....

 in a uniform system of ancient weights and measures.

Major cities of the civilization included Harappa
Harappa
Harappa is an archaeological site in Punjab, northeast Pakistan, about west of Sahiwal. The site takes its name from a modern village located near the former course of the Ravi River. The current village of Harappa is from the ancient site. Although modern Harappa has a train station left from...

 (3300 BC), Dholavira
Dholavira
Dholavira is an archaeological site in Khadirbet in Bhachau Taluka of Kachchh district of Gujarat state in western India, which has taken its name from a modern village 1 km south of it. The site of Dholavira, locally known as Kotada timba contains ruins of an ancient Harappan city...

 (2900 BC), Mohenjo-Daro
Mohenjo-daro
Mohenjo-daro is an archeological site situated in what is now the province of Sindh, Pakistan. Built around 2600 BC, it was one of the largest settlements of the ancient Indus Valley Civilization, and one of the world's earliest major urban settlements, existing at the same time as the...

 (2500 BC), Lothal
Lothal
Lothal is one of the most prominent cities of the ancient Indus valley civilization. Located in Bhāl region of the modern state of Gujarāt and dating from 2400 BCE. Discovered in 1954, Lothal was excavated from February 13, 1955 to May 19, 1960 by the Archaeological Survey of India...

 (2400 BC), and Rakhigarhi
Rakhigarhi
Rakhigarhi, or Rakhi Garhi , is a village in Hisar District in the northwest Indian state of Haryana, around 150 kilometers from Delhi. In 1963 archeologists discovered the village was the site of an extensive city, part of the Indus Valley Civilization...

. The Indus Valley Civilization was mainly centered in what is now Pakistan
Pakistan
Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

 and western India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. Streets were laid out in grid patterns along with the development of sewage
Sewage
Sewage is water-carried waste, in solution or suspension, that is intended to be removed from a community. Also known as wastewater, it is more than 99% water and is characterized by volume or rate of flow, physical condition, chemical constituents and the bacteriological organisms that it contains...

 and water
Water
Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state . Water also exists in a...

 systems. This civilization of planned cities came to an end around 1700 BC either through external invasion and perhaps due to drying of rivers flowing from the Himalayas
Himalayas
The Himalaya Range or Himalaya Mountains Sanskrit: Devanagari: हिमालय, literally "abode of snow"), usually called the Himalayas or Himalaya for short, is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau...

 to the Arabian sea and geological/climatic changes in the Indus valley civilization area which resulted in the formation of the Thar desert. The origins of the invaders are a matter of conjecture. As a result, the cities were abandoned and populations reduced and people moved to the more fertile Ganga-Yamuna river area. The Indus Valley script remains un-deciphered. This theory is called the Aryan Invasion Theory
Aryan invasion theory
The term Aryan invasion theory may refer to*migrational scenarios of prehistorical Indo-Aryan migrations*in 19th and early 20th century racialism:** Historical definitions of races in India** Aryan race*in late 20th century:**Out of India theory...

. An alternative theory proposed is the Out of India theory
Out of India theory
The Out of India theory is the proposition that the Indo-European language family originated in the Indian subcontinent and spread to the remainder of the Indo-European region through a series of migrations...

, according to which there was no Aryan invasion into India, there was a continuity between the Indus Valley Civilization and the subsequent Vedic Age and that the decline of the Indus Valley Civilization
Indus Valley Civilization
The Indus Valley Civilization was a Bronze Age civilization that was located in the northwestern region of the Indian subcontinent, consisting of what is now mainly modern-day Pakistan and northwest India...

 was related to geological events.

China

The history of China
History of China
Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the Cradle of Chinese Civilization. With thousands of years of continuous history, China is one of the world's oldest...

 is told in traditional historical records that refer as far back as the Three Sovereigns and Five Emperors about 5,000 years ago, supplemented by archaeological records dating to the 16th century BC. China is one of the world's oldest continuous civilizations. Turtle shells with markings reminiscent of ancient Chinese writing from the Shang Dynasty have been carbon dated to around 1500 BC. The Yellow River
Yellow River
The Yellow River or Huang He, formerly known as the Hwang Ho, is the second-longest river in China and the sixth-longest in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into...

 was irrigated around 2205 BC, reputedly by an Emperor
Emperor of China
The Emperor of China refers to any sovereign of Imperial China reigning between the founding of Qin Dynasty of China, united by the King of Qin in 221 BCE, and the fall of Yuan Shikai's Empire of China in 1916. When referred to as the Son of Heaven , a title that predates the Qin unification, the...

 named Yu the Great
Yu the Great
Yu the Great , was a legendary ruler of Ancient China famed for his introduction of flood control, inaugurating dynastic rule in China by founding the Xia Dynasty, and for his upright moral character....

, starting the semi-mythical Xia Dynasty
Xia Dynasty
The Xia Dynasty is the first dynasty in China to be described in ancient historical chronicles such as Bamboo Annals, Classic of History and Records of the Grand Historian. The Xia Dynasty was established by the legendary Yu the Great after Shun, the last of the Five Emperors gave his throne to him...

. Archaeologists disagree whether or not there is archaeological evidence to support the existence of the Xia Dynasty, with some suggesting that the Bronze Age
Bronze Age
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 society, the Erlitou culture
Erlitou culture
The Erlitou culture is a name given by archaeologists to an Early Bronze Age urban society that existed in China from 2000 BCE to 1500 BCE. The culture was named after the site discovered at Erlitou in Yanshi, Henan Province...

, was the site of this ancient, first recorded dynasty of China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. The earliest archaeologically verifiable dynasty in recorded Chinese history, the Shang Dynasty
Shang Dynasty
The Shang Dynasty or Yin Dynasty was, according to traditional sources, the second Chinese dynasty, after the Xia. They ruled in the northeastern regions of the area known as "China proper" in the Yellow River valley...

, emerged around 1750 BC. The Shang Dynasty is attributed for bronze artifacts and oracle bone
Oracle bone
Oracle bones are pieces of bone normally from ox scapula or turtle plastron which were used for divination chiefly during the late Shang Dynasty. The bones were first inscribed with divination in oracle bone script by using a bronze pin, and then heated until crack lines appeared in which the...

s, which were turtle shells or cattle scapula on which are written the first recorded Chinese character
Chinese character
Chinese characters are logograms used in the writing of Chinese and Japanese , less frequently Korean , formerly Vietnamese , or other languages...

s and found in the Huang He valley in Yin
Yinxu
Yinxu is the ruins of the last capital of China's Shang Dynasty. The capital served 255 years for 12 kings in 8 generations.Rediscovered in 1899, it is one of the oldest and largest archeological sites in China and is one of the historical capitals of China and a UNESCO World Heritage Site...

, a capital of the Shang Dynasty
Shang Dynasty
The Shang Dynasty or Yin Dynasty was, according to traditional sources, the second Chinese dynasty, after the Xia. They ruled in the northeastern regions of the area known as "China proper" in the Yellow River valley...

.

The oldest pre-civilized Neolithic cultures found in China to date are the Pengtoushan
Pengtoushan culture
The Pengtoushan culture , dating 7500–6100 BCE, was a Neolithic culture centered primarily around the central Yangtze River region in northwestern Hunan, China. It was roughly contemporaneous with its northern neighbor, the Peiligang culture...

, the Jiahu
Jiahu
Jiahu was the site of a Neolithic Yellow River settlement based in the central plains of ancient China, modern Wuyang, Henan Province. Archaeologists consider the site to be one of the earliest examples of the Peiligang culture. Settled from 7000 to 5800 BC, the site was later flooded and abandoned...

, and the Peiligang
Peiligang culture
The Peiligang culture is a name given by archaeologists to a group of Neolithic communities in the Yi-Luo river basin in Henan Province, China. The culture existed from 7000 BC to 5000 BC. Over 70 sites have been identified with the Peiligang culture. The culture is named after the site discovered...

, all dated to about 7000 BC. Pengtoushan has been difficult to date and has a date variance from 9000 BC to 5500 BC, but it was at this site that remains of domesticated rice dated at about 7000 BC were found. At Jiahu, some of the earliest evidence of rice cultivation was found. Another notable discovery at Jiahu was playable tonal flutes, dated around 7000 BC to 6600 BC. Peiligang was one of the earliest cultures in China to make pottery. Both Jiahu and Peiligang developed millet farming, animal husbandry, storage and redistribution of crops. Evidence also indicates specialized craftsmanship and administrator
Public administration
Public Administration houses the implementation of government policy and an academic discipline that studies this implementation and that prepares civil servants for this work. As a "field of inquiry with a diverse scope" its "fundamental goal.....

s in these Neolithic cultures (see History of China: Prehistoric times).

The early history of China is complicated by the lack of a written language during this period coupled with the existence of documents from later time periods attempting to describe events that occurred several centuries before. The problem in some sense stems from centuries of introspection on the part of the Chinese people which has blurred the distinction between fact and fiction in regards to this early history. By 7000 BC, the Chinese were farming millet, giving rise to the Jiahu
Jiahu
Jiahu was the site of a Neolithic Yellow River settlement based in the central plains of ancient China, modern Wuyang, Henan Province. Archaeologists consider the site to be one of the earliest examples of the Peiligang culture. Settled from 7000 to 5800 BC, the site was later flooded and abandoned...

 culture. At Damaidi
Damaidi
Damaidi , is the location of 3,172 sets of early Chinese petroglyphs, carved into the cliffs which feature 8,453 individual figures. These are believed to represent possibly the earliest writing system known in China....

 in the Ningxia Hui Autonomous Region, 3,172 cliff carvings dating to 6,000-5,000 BC have been discovered "featuring 8,453 individual characters such as the sun, moon, stars, gods and scenes of hunting or grazing." These pictographs are reputed to be similar to the earliest characters confirmed to be written Chinese. Later Yangshao culture
Yangshao culture
The Yangshao culture was a Neolithic culture that existed extensively along the central Yellow River in China. The Yangshao culture is dated from around 5000 BC to 3000 BC. The culture is named after Yangshao, the first excavated representative village of this culture, which was discovered in 1921...

 was superseded by the Longshan culture
Longshan culture
The Longshan culture was a late Neolithic culture in China, centered on the central and lower Yellow River and dated from about 3000 BC to 2000 BC...

 around 2500 BC. Archaeological site
Archaeological site
An archaeological site is a place in which evidence of past activity is preserved , and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record.Beyond this, the definition and geographical extent of a 'site' can vary widely,...

s such as Sanxingdui
Sanxingdui
Sanxingdui is the name of an archaeological site and its deduced culture in China, now believed to be the site of an ancient Chinese city. The previously unknown Bronze Age culture was re-discovered in 1987 when archaeologists excavated remarkable artifacts, that radiocarbon dating dated as being...

 and Erlitou
Erlitou culture
The Erlitou culture is a name given by archaeologists to an Early Bronze Age urban society that existed in China from 2000 BCE to 1500 BCE. The culture was named after the site discovered at Erlitou in Yanshi, Henan Province...

 show evidence of a Bronze Age
Bronze Age
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 civilization
Civilization
Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

 in China. The earliest bronze knife was found at Majiayao
Majiayao culture
The Majiayao culture is a name given by archaeologists to a group of Neolithic communities who lived primarily in the upper Yellow River region in eastern Gansu, eastern Qinghai and northern Sichuan, China. The culture existed from 3100 BC to 2700 BC...

 in Gansu and Qinhai province dated 3000 BC.

Chinese civilization originated with city-states in the Yellow River valley. 221 BC is the commonly accepted year when China became culturally and politically unified under a large centralized empire, the Qin Dynasty
Qin Dynasty
The Qin Dynasty was the first imperial dynasty of China, lasting from 221 to 207 BC. The Qin state derived its name from its heartland of Qin, in modern-day Shaanxi. The strength of the Qin state was greatly increased by the legalist reforms of Shang Yang in the 4th century BC, during the Warring...

, founded by Emperor Qin Shi Huang Di. Successive dynasties in Chinese history developed bureaucratic systems that enabled the Emperor of China to control the large territory from the center.

Greece

The oldest man-made structure is found within a prehistoric cave in central Greece, according to the Greek culture ministry. The structure is a stone wall that blocked two-thirds of the entrance to the Theopetra cave, near Kalambaka, on the north edge of the Thessalian plain. It was constructed 23,000 years ago, probably as a barrier to cold winds.

In Crete
Crete
Crete is the largest and most populous of the Greek islands, the fifth largest island in the Mediterranean Sea, and one of the thirteen administrative regions of Greece. It forms a significant part of the economy and cultural heritage of Greece while retaining its own local cultural traits...

 recent findings show that the ancient people of Greece had "the most ancient sign of early navigation worldwide". Archaeological experts from Greece discovered along the southern coast of the Greek island of Crete rough axes and other tools and indicating that men of Crete navigated across open waters as far back as between 130,000 and 700,000 years ago

The Franchthi Cave
Franchthi Cave
Franchthi cave in the Peloponnese, in the southeastern Argolid, is a cave overlooking the Argolic Gulf opposite the Greek village of Koilada....

 in the Peloponnese
Peloponnese
The Peloponnese, Peloponnesos or Peloponnesus , is a large peninsula , located in a region of southern Greece, forming the part of the country south of the Gulf of Corinth...

, in the southeastern Argolid, was occupied from the Palaeolithic circa
Circa
Circa , usually abbreviated c. or ca. , means "approximately" in the English language, usually referring to a date...

 20,000 BCE (and possibly earlier) through the Mesolithic
Mesolithic
The Mesolithic is an archaeological concept used to refer to certain groups of archaeological cultures defined as falling between the Paleolithic and the Neolithic....

 and Neolithic
Neolithic
The Neolithic Age, Era, or Period, or New Stone Age, was a period in the development of human technology, beginning about 9500 BC in some parts of the Middle East, and later in other parts of the world. It is traditionally considered as the last part of the Stone Age...

 periods, being abandoned about 3000 BCE (Middle Neolithic). It is one of the very few settlements in the world that shows continuous human occupation for more than 20,000 years.
It also contains some of the earliest evidence for agriculture in Greece. The first inhabitants were probably hunter gatherers, but from around 11,000 BCE almond
Almond
The almond , is a species of tree native to the Middle East and South Asia. Almond is also the name of the edible and widely cultivated seed of this tree...

s, pistachio
Pistachio
The pistachio, Pistacia vera in the Anacardiaceae family, is a small tree originally from Persia , which now can also be found in regions of Syria, Lebanon, Turkey, Greece, Kyrgyzstan, Turkmenistan, India, Pakistan, Egypt, Sicily and possibly Afghanistan , as well as in the United States,...

s, bitter vetch
Bitter vetch
Vicia ervilia, the bitter vetch, is an ancient grain legume crop of the Mediterranean region. Besides the English name, other common names include: Gavdaneh , kersannah , yero , rovi , and burçak . The nutritional value of the grain for ruminant production has guaranteed the continued cultivation...

, and lentil
Lentil
The lentil is an edible pulse. It is a bushy annual plant of the legume family, grown for its lens-shaped seeds...

s all appear at the same time, while wild oats
Wild oat
Wild oat may refer to:*Common wild oat or Avena fatua*Slender wild oat or Avena barbata*Winter wild oat or Avena sterilis...

 and wild barley appear from 10,500 BCE, while from 7,300 BCE peas
PEAS
P.E.A.S. is an acronym in artificial intelligence that stands for Performance, Environment, Actuators, Sensors.-Performance:Performance is a function that measures the quality of the actions the agent did....

 and wild pears also appear.

The Neolithic Civilization (6800-3300 B.C.) Neolithic civilization is the long era, the main characteristics of which are farming, stock-breeding, permanent installation and the extensive use of stone. From the stage of the nomadic hunter-gatherer (Paleolithic Era) man entered the stage of farmer-husbandman and dominated his natural environment.
This Neolithic "revolution" is affected in ancient Greece at the beginning of the 7th millennium BC
7th millennium BC
During the 7th millennium BC, agriculture spreads from Anatolia to the Balkans.World population was essentially stable at around 5 million people, living mostly scattered across the globe in small hunting-gathering tribes...


. The Neolithic civilization lasted more than three thousand years. The Neolithic settlements extended all over Greece, with the greatest concentration in the plain of Thessaly
Thessaly
Thessaly is a traditional geographical region and an administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thessaly was known as Aeolia, and appears thus in Homer's Odyssey....

, where the two most important settlements are located, Sesklo and Dimini. The arrangement of the dwellings of the settlement, with their streets and squares, constitute the first architectural and town-planning forms on European ground.

The first settlements, which predate the 6th millennium BC, are known as proto-Sesklo (main group) and pre-Sesklo (secondary groups with differentiated characteristics) and they show an advanced agriculture and a very early use of pottery that rivals in age those of the Near East, in an area geographically close to the Petralona
Petralona
Petralona is a neighborhood of Athens, Greece located between Thiseio and Kallithea. Athenians refer to Petralona either as Ano Petralona or Kato Petralona, where Ano Petralona is the area between the hill of Filopappou and the railway and Kato Petralona the area between the railway and Piraeus...

 cave and the Archanthropus living environment.
the settlements of Sesklo
Sesklo
Sesklo is a village nearby the city of Volos, in Thessaly , in the prefecture of Magnesia. It is part of the municipality Aisonia...

 6850 BC Dimini
Dimini
Dimini is a village near the city of Volos, in Thessaly , in Magnesia. It was the seat of the municipality of Aisonia. The name Aisonia dates back to ancient times and it is the westernmost place in the Volos area. The Dimini area contains both a Mycenean settlement and a Neolithic settlement...

 4800 BC and Dispilio
Dispilio
Dispilio is an archaeological site containing remains of a Neolithic lakeshore settlement that occupied an artificial island near the modern village of Dispilio on Lake Orestiada in Kastoria Prefecture, Macedonia, Greece....

 5600 BC is one of the most important sites for our knowledge of this period in Greece, Sesklo was at its peak during the Middle Neolithic (5800-5300 BC) when it occupied an area of approximately 100,000 square metres, the settlement's 500-800 dwellings were densely arranged, with narrow streets and squares running between them, surrounded by large retaining walls.
.

The Minoan civilization
Minoan civilization
The Minoan civilization was a Bronze Age civilization that arose on the island of Crete and flourished from approximately the 27th century BC to the 15th century BC. It was rediscovered at the beginning of the 20th century through the work of the British archaeologist Arthur Evans...

 was a Bronze Age
Bronze Age
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 civilization that arose on the island of Crete
Crete
Crete is the largest and most populous of the Greek islands, the fifth largest island in the Mediterranean Sea, and one of the thirteen administrative regions of Greece. It forms a significant part of the economy and cultural heritage of Greece while retaining its own local cultural traits...

 and flourished from approximately the 2700 BC to the 1500 BC. It was rediscovered at the beginning of the 20th century through the work of the British archaeologist Sir Arthur Evans. Will Durant
Will Durant
William James Durant was a prolific American writer, historian, and philosopher. He is best known for The Story of Civilization, 11 volumes written in collaboration with his wife Ariel Durant and published between 1935 and 1975...

 referred to it as "the first link in the European chain." The early inhabitants of Crete settled as early as 128,000 BC, during the Middle Paleolithic
Middle Paleolithic
The Middle Paleolithic is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleolithic in African archeology. The Middle Paleolithic and the Middle Stone Age...

 age. in 5000 BC the first signs of advanced agriculture appeared, marking the beginning of the civilization.

The Mycenaean Greeks invaded Crete in 1500 BC and adopted much of the Minoan culture they found on Crete. The Minoan civilization which preceded the Mycenaean civilization on Crete was revealed to the modern world by Sir Arthur Evans
Arthur Evans
Sir Arthur John Evans FRS was a British archaeologist most famous for unearthing the palace of Knossos on the Greek island of Crete and for developing the concept of Minoan civilization from the structures and artifacts found there and elsewhere throughout eastern Mediterranean...

 in 1900, when he purchased and then began excavating a site at Knossus.

Mycenaean civilization was dominated by a warrior aristocracy
Aristocracy
Aristocracy , is a form of government in which a few elite citizens rule. The term derives from the Greek aristokratia, meaning "rule of the best". In origin in Ancient Greece, it was conceived of as rule by the best qualified citizens, and contrasted with monarchy...

. Around 1400 BC the Mycenaeans extended their control to Crete
Crete
Crete is the largest and most populous of the Greek islands, the fifth largest island in the Mediterranean Sea, and one of the thirteen administrative regions of Greece. It forms a significant part of the economy and cultural heritage of Greece while retaining its own local cultural traits...

, center of the Minoan civilization
Minoan civilization
The Minoan civilization was a Bronze Age civilization that arose on the island of Crete and flourished from approximately the 27th century BC to the 15th century BC. It was rediscovered at the beginning of the 20th century through the work of the British archaeologist Arthur Evans...

, and adopted a form of the Minoan script called Linear A
Linear A
Linear A is one of two scripts used in ancient Crete before Mycenaean Greek Linear B; Cretan hieroglyphs is the second script. In Minoan times, before the Mycenaean Greek dominion, Linear A was the official script for the palaces and religious activities, and hieroglyphs were mainly used on seals....

 to write their early form of Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

. The Mycenaean era script is called Linear B
Linear B
Linear B is a syllabic script that was used for writing Mycenaean Greek, an early form of Greek. It pre-dated the Greek alphabet by several centuries and seems to have died out with the fall of Mycenaean civilization...

.

Around 1100 BC the Mycenaean civilization collapsed. Numerous cities were sacked and the region entered what historians see as a dark age
Greek Dark Ages
The Greek Dark Age or Ages also known as Geometric or Homeric Age are terms which have regularly been used to refer to the period of Greek history from the presumed Dorian invasion and end of the Mycenaean Palatial civilization around 1200 BC, to the first signs of the Greek city-states in the 9th...

. During this period Greece experienced a decline in population
Population
A population is all the organisms that both belong to the same group or species and live in the same geographical area. The area that is used to define a sexual population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals...

 and literacy
Literacy
Literacy has traditionally been described as the ability to read for knowledge, write coherently and think critically about printed material.Literacy represents the lifelong, intellectual process of gaining meaning from print...

. The Greeks themselves have traditionally blamed this decline on an invasion
Dorian invasion
The Dorian invasion is a concept devised by historians of Ancient Greece to explain the replacement of pre-classical dialects and traditions in southern Greece by the ones that prevailed in Classical Greece...

 by another wave of Greek people, the Dorians, although there is scant archaeological evidence for this view.
In 900-800 BC the Greek civilization was engulfed in a renaissance that spread the Greek world as far as the Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

 and Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. Writing was relearned from the Phoenicians, eventually spreading north into Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and the Gauls
Gauls
The Gauls were a Celtic people living in Gaul, the region roughly corresponding to what is now France, Belgium, Switzerland and Northern Italy, from the Iron Age through the Roman period. They mostly spoke the Continental Celtic language called Gaulish....

.
Ancient Greece is considered by most historians to be the foundational culture of Western Civilization
Western world
The Western world, also known as the West and the Occident , is a term referring to the countries of Western Europe , the countries of the Americas, as well all countries of Northern and Central Europe, Australia and New Zealand...

. Greek culture was a powerful influence in the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

, Ancient Greek civilization has been immensely influential on the language, politics, educational systems, philosophy, art and architecture of the modern world, particularly during the Renaissance
Renaissance
The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the Late Middle Ages and later spreading to the rest of Europe. The term is also used more loosely to refer to the historical era, but since the changes of the Renaissance were not...

 in Western Europe and again during various neo-Classical
Classicism
Classicism, in the arts, refers generally to a high regard for classical antiquity, as setting standards for taste which the classicists seek to emulate. The art of classicism typically seeks to be formal and restrained: of the Discobolus Sir Kenneth Clark observed, "if we object to his restraint...

 revivals in 18th and 19th century Europe and the Americas
Americas
The Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...

.

Americas

In the history of the Americas
History of the Americas
The history of the Americas is the collective history of the American landmass, which includes North and South America, as well as Central America and the Caribbean. It begins with people migrating to these areas from Asia during the height of an Ice Age...

, civilization
Civilization
Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

s were established long after the population of the continent. Several large, centralized civilizations developed in the Western Hemisphere
Western Hemisphere
The Western Hemisphere or western hemisphere is mainly used as a geographical term for the half of the Earth that lies west of the Prime Meridian and east of the Antimeridian , the other half being called the Eastern Hemisphere.In this sense, the western hemisphere consists of the western portions...

 : Norte Chico
Norte Chico civilization
The Norte Chico civilization was a complex pre-Columbian society that included as many as 30 major population centers in what is now the Norte Chico region of north-central coastal Peru...

, Chavin
Chavín culture
The Chavín were a civilization that developed in the northern Andean highlands of Peru from 900 BC to 200 BC. They extended their influence to other civilizations along the coast. The Chavín were located in the Mosna Valley where the Mosna and Huachecsa rivers merge...

, Nazca
Nazca culture
The Nazca culture was the archaeological culture that flourished from 100 to 800 CE beside the dry southern coast of Peru in the river valleys of the Rio Grande de Nazca drainage and the Ica Valley...

, Moche
Moche
'The Moche civilization flourished in northern Peru from about 100 AD to 800 AD, during the Regional Development Epoch. While this issue is the subject of some debate, many scholars contend that the Moche were not politically organized as a monolithic empire or state...

, Huari, Chimu, Tiahuanaco, Aymara and Inca in the Central Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

 (Peru and Bolivia); Muisca
Muisca
Muisca was the Chibcha-speaking tribe that formed the Muisca Confederation of the central highlands of present-day Colombia. They were encountered by the Spanish Empire in 1537, at the time of the conquest...

 in Colombia ; Olmec
Olmec
The Olmec were the first major Pre-Columbian civilization in Mexico. They lived in the tropical lowlands of south-central Mexico, in the modern-day states of Veracruz and Tabasco....

s, Toltec
Toltec
The Toltec culture is an archaeological Mesoamerican culture that dominated a state centered in Tula, Hidalgo in the early post-classic period of Mesoamerican chronology...

s, Mixtec
Mixtec
The Mixtec are indigenous Mesoamerican peoples inhabiting the Mexican states of Oaxaca, Guerrero and Puebla in a region known as La Mixteca. The Mixtecan languages form an important branch of the Otomanguean language family....

s, Zapotec
Zapotec civilization
The Zapotec civilization was an indigenous pre-Columbian civilization that flourished in the Valley of Oaxaca of southern Mesoamerica. Archaeological evidence shows their culture goes back at least 2500 years...

s, Aztec
Aztec
The Aztec people were certain ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica in the 14th, 15th and 16th centuries, a period referred to as the late post-classic period in Mesoamerican chronology.Aztec is the...

s and the Mesoamerica
Mesoamerica
Mesoamerica is a region and culture area in the Americas, extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica, within which a number of pre-Columbian societies flourished before the Spanish colonization of the Americas in the 15th and...

n Maya
Maya civilization
The Maya is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as for its art, architecture, and mathematical and astronomical systems. Initially established during the Pre-Classic period The Maya is a Mesoamerican...

s in Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...

.

South America

The oldest known civilization in South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

, as well as in the Western Hemisphere
Western Hemisphere
The Western Hemisphere or western hemisphere is mainly used as a geographical term for the half of the Earth that lies west of the Prime Meridian and east of the Antimeridian , the other half being called the Eastern Hemisphere.In this sense, the western hemisphere consists of the western portions...

 as a whole, the Norte Chico civilization
Norte Chico civilization
The Norte Chico civilization was a complex pre-Columbian society that included as many as 30 major population centers in what is now the Norte Chico region of north-central coastal Peru...

 comprised several interconnected settlements on the Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

vian coast, including the urban centers at Aspero
Aspero
Aspero is a well-studied site of the ancient Norte Chico civilization, located at the mouth of the Supe river on the north-central Peruvian coast. Monumental architecture, including large platform mounds have been discovered at the site; their significance was first determined in 1973, though...

 and Caral
Caral
Caral was a large settlement in the Supe Valley, near Supe, Barranca province, Peru, some 200 km north of Lima. Caral is the most ancient city of the Americas, and is a well-studied site of the Caral civilization or Norte Chico civilization.- History :...

. The presence of an early form of quipu
Quipu
Quipus or khipus were recording devices used in the Inca Empire and its predecessor societies in the Andean region. A quipu usually consisted of colored, spun, and plied thread or strings from llama or alpaca hair. It could also be made of cotton cords...

 (an Andean recording medium) at Caral indicates its potential influence on later Andean societies, as well as the antiquity of this unique recording system. The stone pyramids on the sites are thought to be contemporary to the great pyramids of Giza. Unusually among Andean cities, no evidence of fortifications, or of other signs of warfare, have yet been found in the Norte Chico.

Mesoamerica

The Olmec
Olmec
The Olmec were the first major Pre-Columbian civilization in Mexico. They lived in the tropical lowlands of south-central Mexico, in the modern-day states of Veracruz and Tabasco....

 civilization was the first Mesoamerican civilization, beginning around 1200 BC and ending around 400 BC. By 2700 BC, settlers in the Americas had begun to grow their first crop, maize, and a number of cities were built. Around 1200 BC, these small cities coalesced into this civilization. A prominent civilization thus emerged. The centers of these cities were ceremonial complexes with pyramids and walled plazas. The first of these centers was at San Lorenzo, with another one following it at La Venta. Olmec artisans sculpted jade and clay figurines of Jaguars and humans, and giant heads of the emperor stood in every major city.

The domestication of maize is thought to have begun around 7,500 to 12,000 years ago. The earliest record of lowland maize cultivation dates to around 5100 BC.

The Olmec civilization ended in 400 BC, with the defacing and destruction of San Lorenzo and La Venta, two of the major cities. This civilization is considered the mother culture of the Mesoamerican civilizations. It spawned the Mayan civilization whose first constructions began around 600 BC and continued to influence future civilizations.

Four great ancient civilizations

The Chinese scholar Liang Qichao
Liang Qichao
Liang Qichao |Styled]] Zhuoru, ; Pseudonym: Rengong) was a Chinese scholar, journalist, philosopher and reformist during the Qing Dynasty , who inspired Chinese scholars with his writings and reform movements...

 put forward a theory in 1900 that there were four great ancient civilizations in his verse essay, The Pacific Ocean in the 20th Century (二十世纪太平洋歌). The four civilizations were ancient China, Babylon
Babylon
Babylon was an Akkadian city-state of ancient Mesopotamia, the remains of which are found in present-day Al Hillah, Babil Province, Iraq, about 85 kilometers south of Baghdad...

, ancient India
Ancient India
Ancient India may refer to:* The ancient history of India, which generally includes the ancient history of the Asian Subcontinent, including:*Science and technology in ancient India**Indian mathematics**Astronomy**List of Indian inventions...

 and ancient Egypt
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

. Liang Qichao divided the history of the world
History of the world
The history of the world or human history is the history of humanity from the earliest times to the present, in all places on Earth, beginning with the Paleolithic Era. It excludes non-human natural history and geological history, except insofar as the natural world substantially affects human lives...

 into three ages: "river age", "sea age", and "ocean age". The four great civilizations were in the river age and all of them developed along rivers. The view of Liu Yizheng
Liu Yizheng
Liu Yizheng is a famous Chinese modern historian.Liu Yizheng finished several first Chinese history books in modern times including history books of education, commerce and culture. Chinese Culture History and Be-all and End-all of National History are the most important of his works....

 is that before "river age" there was a "mountain age". However, not all civilizations experienced "mountain age". It is influenced by geographical environment. The original Chinese civilization came from "mountain age" and then expanded to vast river valley. For civilizations on islands or near seashores, the conditions are different.

This was an early version of the "Four great ancient civilizations" theory which is used in the study of history in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. This theory refers to four civilizations (China, Babylon, India and Egypt) as cradles of civilization.
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