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List of time periods



 
 
The categorization of time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
 into discrete named blocks is called periodization
Periodization

Periodization is the attempt to categorize or divide time into named blocks. The result is a descriptive abstraction that provides a useful handle on periods of time with relatively stable characteristics....
. This is a list of such named time periods as defined in various fields of study. Major categorization systems include cosmological
Cosmology

Cosmology is study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent , study of the Universe has a long history involving science, philosophy, esotericism, and religion....
 (concerning the various time periods in the origin
Big Bang

The Big Bang is the physical cosmology model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific method and observation....
 and evolution of our universe
Universe

The universe is defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and physical constants that govern them....
), geological
Geology

Geology is the science and study of the solid and liquid matter that constitute the Earth. The field of geology encompasses the study of the composition, structural geology, physical properties, dynamics, and History of the Earth of Earth materials, and the processes by which they are formed, moved, and changed....
 (concerning time periods in the origin and evolution
History of Earth

The history of the Earth covers approximately Age of the Earth , from Earth?s formation out of the solar nebula to the present. This article presents a broad overview, summarizing the leading, most current scientific theories....
 of earth
Earth

Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
 ) and historical
HIStory

HIStory: Past, Present and Future, Book I is a double album by Michael Jackson, released on June 20, 1995, and is Jackson's ninth. The first disc, named "HIStory Begins" consists of a selection of Jackson's greatest hits from the singer's past fifteen years, while the second, named "HIStory Continues" features new songs, with the...
 (concerning time periods in the origin, evolution
Human evolution

Human evolution, or anthropogenesis, is the part of biological evolution concerning the emergence of Homo sapiens as a distinct species from other hominans, great apes and placental mammals....
 of mankind
Mankind

Mankind may refer to:* The human speciesMankind may also refer to the male members of the human species, whereas womankind commonly refers to the female members....
).

Human time periods
Based on current and contested evidence, the human species has found its origins starting from about 250,000 years ago - when homo
Homo (genus)

Homo is the genus that includes anatomically modern humanss and their close relatives. The genus is estimated to be about 2.5 million years old, evolving from Australopithecine ancestors with the appearance of Homo habilis....
 began to develop.






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Encyclopedia


The categorization of time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
 into discrete named blocks is called periodization
Periodization

Periodization is the attempt to categorize or divide time into named blocks. The result is a descriptive abstraction that provides a useful handle on periods of time with relatively stable characteristics....
. This is a list of such named time periods as defined in various fields of study. Major categorization systems include cosmological
Cosmology

Cosmology is study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent , study of the Universe has a long history involving science, philosophy, esotericism, and religion....
 (concerning the various time periods in the origin
Big Bang

The Big Bang is the physical cosmology model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific method and observation....
 and evolution of our universe
Universe

The universe is defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and physical constants that govern them....
), geological
Geology

Geology is the science and study of the solid and liquid matter that constitute the Earth. The field of geology encompasses the study of the composition, structural geology, physical properties, dynamics, and History of the Earth of Earth materials, and the processes by which they are formed, moved, and changed....
 (concerning time periods in the origin and evolution
History of Earth

The history of the Earth covers approximately Age of the Earth , from Earth?s formation out of the solar nebula to the present. This article presents a broad overview, summarizing the leading, most current scientific theories....
 of earth
Earth

Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
 ) and historical
HIStory

HIStory: Past, Present and Future, Book I is a double album by Michael Jackson, released on June 20, 1995, and is Jackson's ninth. The first disc, named "HIStory Begins" consists of a selection of Jackson's greatest hits from the singer's past fifteen years, while the second, named "HIStory Continues" features new songs, with the...
 (concerning time periods in the origin, evolution
Human evolution

Human evolution, or anthropogenesis, is the part of biological evolution concerning the emergence of Homo sapiens as a distinct species from other hominans, great apes and placental mammals....
 of mankind
Mankind

Mankind may refer to:* The human speciesMankind may also refer to the male members of the human species, whereas womankind commonly refers to the female members....
).

Human time periods


Based on current and contested evidence, the human species has found its origins starting from about 250,000 years ago - when homo
Homo (genus)

Homo is the genus that includes anatomically modern humanss and their close relatives. The genus is estimated to be about 2.5 million years old, evolving from Australopithecine ancestors with the appearance of Homo habilis....
 began to develop. It is broadly divided into prehistorical (before history began to be recorded) and historical periods (when written records began to be kept).

Prehistorical periods


In archaeology
Archaeology

Archaeology, archeology, or arch?ology is the science that studies Homo cultures through the recovery, documentation, analysis, and interpretation of material remains and environmental data, including architecture, Artifact , features, Biofact s, and cultural landscape....
 and anthropology
Anthropology

Anthropology is the study of humans and humanity in its totality. Anthropology has origins in the natural sciences, and the humanities. In Great Britain it was originally divided into physical anthropology and cultural anthropology, which itself was divided into archaeology, technology, ethnology and sociology ....
, human prehistory
Prehistory

Prehistory is a term often used to describe the period before Recorded history. Paul Tournal originally coined the term Pr?-historique in describing the finds he had made in the caves of southern France....
 is subdivided around the three-age system
Three-age system

The three-age system is the periodization of human prehistory into three consecutive time periods, named for their respective predominant tool-making technologies:...
.

  • The Stone Age
    Stone Age

    The Stone Age is a broad prehistory time period during which humans widely used Rock for toolmaking.Stone tools were made from a variety of different kinds of stone....
    • In some regions the Stone Age is divided into the Paleolithic
      Paleolithic

      The Paleolithic or Palaeolithic or "Old Stone" era is a Prehistory era distinguished by the development of the first stone tools, and covers roughly 99% of human history....
       Age (Old Stone Age) and the Neolithic
      Neolithic

      The Neolithic period was a period in the development of human technology, beginning about 9500 Before the Christian Era in the Middle East that is traditionally considered the last part of the Stone Age....
       Age (New Stone Age).
    • In other regions the Stone Age is divided into the Paleolithic Age, the Mesolithic
      Mesolithic

      The Mesolithic or Middle Stone Age was a period in the development of human technology in between the Paleolithic or Old Stone Age and the Neolithic or New Stone Age....
       Age (Middle Stone Age, also called the Epipaleolithic
      Epipaleolithic

      The Epipaleolithic is a term used for the "final Upper Palaeolithic industries occurring at the end of the final last Ice Age which appear to merge technologically into the Mesolithic"....
       Age), and the Neolithic Age.
  • The Copper Age
    Copper Age

    The Chalcolithic period or Copper Age period [also known as the Eneolithic ], is a phase in the development of human culture in which the use of early metal tools appeared alongside the use of stone tools....
     (aka Chalcolithic Age). The Copper Age was not part of the original three-age system.
  • The Bronze Age
    Bronze Age

    The Bronze Age is, with respect to a given prehistory, the period in that society when the most advanced metalworking included smelting copper and tin from naturally-occurring outcroppings of copper and tin ores, creating a bronze alloy by melting those metals together, and casting them into bronze artifact s....
  • The Iron Age
    Iron Age

    In archaeology, the Iron Age was the stage in the development of any people in which tools and weapons whose main ingredient was iron were prominent....
The dates for each age can vary by region. On the geologic time scale
Geologic time scale

File:Geologic clock.jpgThe geologic time scale is a chronology schema relating stratigraphy to time that is used by geologys and other earth sciences scientists to describe the timing and relationships between events that have occurred during the history of the Earth....
, the Holocene
Holocene

The Holocene is a geological Epoch which began approximately 11,700 years ago . According to traditional geological thinking, the Holocene continues to the present....
 epoch starts at the end of the most recent Ice age
Ice age

The general term "ice age" or, more precisely, "glacial age" denotes a geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in an expansion of continental ice sheets, polar ice sheets and alpine glaciers....
 (about 9400 BC) and continues to the present. The beginning of Mesolithic is usually considered to correspond to the beginning of the Holocene
Holocene

The Holocene is a geological Epoch which began approximately 11,700 years ago . According to traditional geological thinking, the Holocene continues to the present....
 epoch.

Historical periods


  • Ancient history
    Ancient history

    Ancient history is the history from the History of writing until the Early Middle Ages in Europe, the Qin Dynasty in China, the Chola Empire in India, and some less defined point in the rest of the world ....
    , Classical antiquity
    Classical antiquity

    Classical antiquity is a broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of Ancient Greece and Ancient Rome....
    • Mesopotamia
      Timeline of Ancient Mesopotamia

      Ancient Mesopotamia was settled and conquered by numerous ancient civilizations. Dates for events in ancient Mesopotamia are still controversial, and several different methods and standards of dating exist for the Chronology of the ancient Near East; therefore, all dates in this article are only estimates....
       (3500 BC - 559 BC)
    • Indus Valley Civilization
      Indus Valley Civilization

      The Indus Valley Civilization , abbreviated IVC, was an ancient civilization that flourished in the Indus River basin. Primarily centered along the Indus river, the civilization encompassed most of Pakistan, including its Sindh, Punjab and Balochistan provinces, and extending into modern day Indian states of Gujarat, Haryana, Punjab...
       (3300 BC - 1300 BC)
    • Old Kingdom
      Old Kingdom

      The Old Kingdom is the name commonly given to that period in the 3rd millennium BCE when Ancient Egypt attained its first continuous peak of civilization in complexity and achievement ? this was the first of three so-called "Kingdom" periods, which mark the high points of civilization in the lower Nile Valley ....
       (Egypt
      Egypt

      Egypt is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Western Asia. Covering an area of about , Egypt borders the Mediterranean Sea to the north, the Gaza Strip and Israel to the northeast, the Red Sea to the east, Sudan to the south and Libya to the west....
      , 3000 BC - 2000 BC)
    • Middle Kingdom
      Middle Kingdom

      The Middle Kingdom may refer to*China*The Middle Kingdom of Egypt*A group of midwest U.S. states associated with the Society for Creative Anachronism...
       (Egypt
      Egypt

      Egypt is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Western Asia. Covering an area of about , Egypt borders the Mediterranean Sea to the north, the Gaza Strip and Israel to the northeast, the Red Sea to the east, Sudan to the south and Libya to the west....
      , 2000 BC - 1300 BC)
    • Shang Dynasty
      Shang Dynasty

      The Shang Dynasty or Yin Dynasty was according to traditional sources the first Dynasties in Chinese history. They ruled in the northeastern region of the area known as "China proper", in the Yellow River valley....
       (China
      China

      China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
       1800 BC - 1200 BC)
    • Vedic Period
      Vedic period

      The Vedic Period is the period during which the Vedas, the oldest sacred texts of Indo-Iranians, were being composed. Scholars place the Vedic period in the 2nd millennium BCE and 1st millennium BCE millennia BCE continuing up to the 6th century BCE based on literary evidence....
       (India
      India

      India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....
       1500 BC - 500 BC)
    • New Kingdom
      New Kingdom

      The New Kingdom, sometimes referred to as the Egyptian Empire, is the period in ancient Egyptian History of Ancient Egypt between the 16th century BC and the 11th century BC, covering the Eighteenth dynasty of Egypt, Nineteenth dynasty of Egypt, and Twentieth dynasty of Egypt....
       (Egypt
      Egypt

      Egypt is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Western Asia. Covering an area of about , Egypt borders the Mediterranean Sea to the north, the Gaza Strip and Israel to the northeast, the Red Sea to the east, Sudan to the south and Libya to the west....
      , 1300 BC - 700 BC)
    • Zhou Dynasty
      Zhou Dynasty

      The Zhou Dynasty was preceded by the Shang Dynasty and followed by the Qin Dynasty in China. The Zhou dynasty lasted longer than any other dynasty in China history?though the actual political and military control of China by the dynasty only lasted during the Western Zhou....
       (China
      China

      China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
       1200 BC - 500 BC)
    • Ancient Greece
      Ancient Greece

      The term Ancient Greece refers to the period of History of Greece lasting from the Greek Dark Ages ca. 1100 BC and the Dorian invasion, to 146 BC and the Roman Republic conquest of Greece after the Battle of Corinth ....
       (Greece
      Greece

      Greece , officially the Hellenic Republic , is a country in southeastern Europe, situated on the southern end of the Balkans. It has borders with Albania, Bulgaria and the former Yugoslav Republic of Macedonia to the north, and Turkey to the east....
       and Near East
      Near East

      Near East today is an ambiguous term that covers different countries for archeologists and historians, on one hand, and for political scientists, economists, and journalists, on the other....
      , c. 1000 BC- 31 BC, see Timeline of Ancient Greece
      Timeline of Ancient Greece

      This is a timeline of ancient Greece.All dates are Before Common Era....
      )
    • Jomon period
      Jomon period

      The is the time in history of Japan from about 14th millennium BC to 5th century BC.The term "Jomon" means "cord-patterned" in Japanese. This refers to the markings made on clay vessels and figures using sticks with cords wrapped around them which are characteristic of the Jomon people....
       (Japan
      Japan

      Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
       800 BC-400 BC)
    • Ancient Rome
      Timeline of ancient Rome

      This is a Timeline of events concerning ancient Rome, from the city foundation until the last attempt of the Byzantine Empire to re-conquer Rome....
       (509 BC - 476)
    • Yayoi Period
      Yayoi period

      The is an era in the history of Japan from about 500 BC to 300 AD. It is named after the neighbourhood of Tokyo where Archaeology first uncovered artifacts and features from that era....
       (Japan
      Japan

      Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
       400 BC - 300)
    • Kofun Period
      Kofun period

      The is an era in the history of Japan from around 250 to 538. The word kofun is Japanese for the type of tumuluss dating from this era. The Kofun period follows the Yayoi period....
       (Japan
      Japan

      Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
       300- 600)
    • Migration Period
      Migration Period

      The Migration Period, also called Barbarian Invasions or V?lkerwanderung , was a period of human migration which occurred within the period of roughly 300?700 Common Era in Europe, marking the transition from Late Antiquity to the Early Middle Ages....
       (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
       200 - 700)
  • Middle Ages
    Middle Ages

    File:Karl 1 mit papst gelasius gregor1 sacramentar v karl d kahlen.jpgThe Middle Ages of European history are a period in history which lasted for roughly a millennium, commonly dated from the fall of the Roman Empire in the 5th century to the beginning of the Early Modern Period in the 16th century, marked by the division of Western Christi...
     (Europe
    Europe

    Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
    , 4th century - 15th century)
    • Early Middle Ages European
      History of Europe

      The history of Europe describes the passage of time from humans inhabiting the European Continental Europe to the present day. For convenience sake, historians divide long periods into more manageable eras....
       (500–1000 CE)
      • Dark Age (Europe, 4th century - 900)
      • Viking Age
        Viking Age

        Viking Age is the term for the period in European history, especially Northern European and Scandinavian history, spanning the eighth to eleventh centuries....
         (Scandinavia
        Scandinavia

        Scandinavia is a historical and geographical subregion in northern Europe that includes the Scandinavian Peninsula. It consists of the kingdoms of Norway, Sweden, and Denmark; some authorities also include Finland and some might even include Iceland....
        , Europe
        Europe

        Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
        , 793–1066)
    • Asuka period
      Asuka period

      The , was a period in the history of Japan lasting from 538 to 710 , although its beginning could be said to overlap with the preceding Kofun period. The Yamato polity evolved much during the Asuka period, which is named after the Asuka, Yamato region, about 25 km south to the modern city of Nara, Nara....
      , Nara period
      Nara period

      The of the history of Japan covers the years from AD 710 to 794. Empress Gemmei established the capital of Heijo-kyo . Except for 5 years , when the capital was briefly moved again, it remained the capital of Japanese civilization until Emperor Kammu established a new capital, Nagaoka-kyo, in 784 before moving to Heian-kyo , or Kyoto, a decade lat...
      , Heian period
      Heian period

      The is the last division of classical History of Japan, running from 794 to 1185. It is the period in Japanese history when Confucianism and other Chinese culture were at their height....
      , Kamakura period
      Kamakura period

      The is a period of History of Japan that marks the governance by the Kamakura shogunate, officially established in 1192 in Kamakura, Kanagawa by the first shogun Minamoto no Yoritomo....
      , Muromachi period
      Muromachi period

      The was a division of History of Japan running from approximately 1336 to 1573. The period marks the governance of the Ashikaga shogunate, which was officially established in 1336 by the first Muromachi shogun, Ashikaga Takauji....
      , and Azuchi-Momoyama period
      Azuchi-Momoyama period

      The came at the end of the Sengoku period in Japan, when the political unification that preceded the establishment of the Tokugawa shogunate took place....
       (Japan
      Japan

      Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
      , 538 - 1603)
    • Southern and Northern Dynasties
      Southern and Northern Dynasties

      The Southern and Northern Dynasties followed the Jin Dynasty and preceded Sui Dynasty in China. It was an age of civil war and political disunity....
      , Sui Dynasty
      Sui Dynasty

      The Sui Dynasty followed the Southern and Northern Dynasties and preceded the Tang Dynasty in China. It ended nearly four centuries of division between rival regimes....
      , Tang Dynasty
      Tang Dynasty

      The Tang Dynasty was an Dynasties in Chinese history preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire....
      , Period of Five Dynasties and Ten Kingdoms (China
      China

      China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
      , 420 - 960), Liao Dynasty
      Liao Dynasty

      The Liao Dynasty , 907-1125, also known as the Khitan Empire , was an empire in East Asia that ruled over the regions of Manchuria, Mongolia, and parts of northern China proper....
      , Song Dynasty
      Song Dynasty

      The Song Dynasty was a ruling Chinese dynasty in China between 960–1279 AD; it succeeded the Five Dynasties and Ten Kingdoms Period, and was followed by the Yuan Dynasty....
      , Jin Dynasty (1115–1234), Western Xia
      Western Xia

      The Western Xia Dynasty or the Tangut Empire was a state that existed from 1038 up to 1227 in what are now the northwestern provinces of China of Gansu, Shaanxi, and Ningxia....
       Dynasty, Yuan Dynasty
      Yuan Dynasty

      The Yuan Dynasty , or Great Yuan Empire was both the continuation of the Mongol Empire and the Mongol founded historical state in Mongolia and China, lasting officially from 1271 to 1368....
      , and Ming Dynasty
      Ming Dynasty

      The Ming Dynasty , or Empire of the Great Ming , was the ruling Dynasties in Chinese history of China from 1368 to 1644, following the collapse of the Mongol-led Yuan Dynasty....
       (China
      China

      China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
      , 220 - 1644)
    • Classic and Postclassic eras
      Mesoamerican chronology

      Mesoamerican chronology divides the history of pre-Columbian Mesoamerica into a number of named successive eras or periods, from the earliest evidence of human habitation through to the early Colonial period which followed the Spanish colonization of the Americas....
      , Central America (200 - 1519)
    • Gupta Empire
      Gupta Empire

      The Gupta Empire was ruled by members of the Gupta dynasty from around 280 to 550 CE and covered most of Northern India, Southern and Eastern Pakistan, parts of Gujarat and Rajasthan and what is now western India and Bangladesh....
      , Pala Empire
      Pala Empire

      The Pala Empire was a dynasty in control of the northern and eastern Indian subcontinent, mainly the Bihar and Bengal regions, from the 8th to the 12th century....
      , Rashtrakuta
      Rashtrakuta

      The Rashtrakuta Dynasty was a Royal family Indian dynasty ruling large parts of southern, central and northern India between the sixth and the thirteenth centuries....
      , Hoysala Empire
      Hoysala Empire

      The Hoysala Empire was a prominent South Indian Kannadiga empire that ruled most of the modern day States and territories of India of Karnataka between the 10th and the 14th centuries....
      , and Kakatiya Empire (India
      India

      India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....
      , 280 – 1323)
    • Islamic Golden Age
      Islamic Golden Age

      The Islamic Golden Age, also sometimes known as the Islamic Renaissance, was traditionally dated from the 700 A.D. to 1200 A.D.Common Era, but has been extended to the 15th and 16th centuries by some scholars....
       (Islam
      Islam

      Islam is a Monotheism, Abrahamic religion originating with the teachings of the Prophets of Islam Muhammad, a 7th century Arab religious and political figure....
      , 700 - 1300)
    • High Middle Ages
      High Middle Ages

      The High Middle Ages was the periodization of history of Europe in the 11th, 12th, and 13th centuries . The High Middle Ages were preceded by the Early Middle Ages and followed by the Late Middle Ages, which by convention end around 1500....
       (Feudalism
      Feudalism

      Feudalism, a term first used in the early modern period , in its most classic sense refers to a Middle Ages European political system composed of a set of reciprocal law and military obligations among the warrior nobility, revolving around the three key concepts of lords, vassals, and fiefs....
      ) European military expansion (1000–1450 CE)
    • Srivijaya
      Srivijaya

      Srivijaya or Sriwijaya was an ancient Malays kingdom on the island of Sumatra, Southeast Asia which influenced much of the Malay Archipelago. The earliest solid proof of its existence dates from the 7th century; a Chinese monk, I-Tsing, wrote that he visited Srivijaya in 671 for 6 months....
       (Indonesia
      Indonesia

      The Republic of Indonesia , is a transcontinental country in Southeast Asia and Oceania. Comprising Islands of Indonesia, it is the world's largest Archipelago state....
      , 3rd century to 14th century), Tarumanagara
      Tarumanagara

      Tarumanagara or Taruma Kingdom or just Taruma is an early Sundanese kingdom, whose fifth-century ruler, Purnavarman, produced the earliest known inscriptions on Java island....
       (358-723), Sailendra
      Sailendra

      Sailendra is the name of an influential Indonesian dynasty that emerged in 8th century Java.The Sailendras were active promoters of Mahayana Buddhism and covered the plains of Central Java with Buddhist monuments, including the world famous Borobudur....
       (8th & 9th centuries), Kingdom of Sunda
      Sunda Kingdom

      The Sunda Kingdom was, according to primary historical records from the sixteenth century, a kingdom covering areas of present-day Banten Province, Jakarta, West Java Province, and the west of Central Java Province....
       (669-1579), Kingdom of Mataram
      Mataram Kingdom

      Mataram was an Indianized kingdom based in Central Java between the 8th and 10th centuries AD and was established by king Sanjaya, he was also known as the founder of Sanjaya dynasty....
       (752–1045), Kediri (1045–1221), Singhasari
      Singhasari

      Singhasari was a monarchy located in east Java between 1222 and 1292....
       (1222–1292), Majapahit (1293–1500)
    • Chenla
      Chenla

      Chenla , known as Zhenla in Chinese language and Ch?n L?p in Vietnamese language, was an early Khmer people kingdom.At first a vassal state to Funan , over the next 60 years it achieved its independence and eventually conquered all of Funan, absorbing its people and culture....
       (Cambodia
      Cambodia

      The Kingdom of Cambodia is a country in South East Asia with a population of over 13 million people. The kingdom's capital and largest city is Phnom Penh....
      , 630 – 802) and Khmer Empire
      Khmer Empire

      The Khmer Empire was the largest empire of South East Asia based in what is now Cambodia. The empire, which seceded from the kingdom of Chenla, at times ruled over and/or vassalised parts of modern-day Laos, Thailand,Vietnam, Myanmar, and Malaysia....
       (Cambodia
      Cambodia

      The Kingdom of Cambodia is a country in South East Asia with a population of over 13 million people. The kingdom's capital and largest city is Phnom Penh....
      , 802 – 1432)
    • Anterior Lý Dynasty
      Lý Nam Ð?

      L? Nam ?? was originally L? B? or L? B?n is debatably considered the "first" emperor of Vietnam and the founder of the Early L? Dynasty Dynasty and ruled from Feb....
       and Tri?u Vi?t Vuong
      Tri?u Vi?t Vuong

      Tri?u Vi?t Vuong was a Vietnamese independence leader in the 6th century and a soldier for the V?n Xu?n army, best known for fighting against the invading Liang army that wished to incorporate V?n Xu?n into their empire....
      , Third Chinese domination
      Third Chinese domination (History of Vietnam)

      The Third Chinese domination of Vietnam saw two Chinese imperial dynasties rule over the Chinese controlled region of Chiaozhou .From 602-618, the area was under the late Sui Dynasty under three districts in the Red River Delta....
      , Khúc Family
      Khúc family

      The Kh?c family was a session of leaders who challenged Tang Dynasty rule over Vietnam. The Tang took control of the northern Vietnamese region of Giao Ch?u after 618 and established twelve provinces and 59 districts under the Department of Annam Domination ....
      , Duong Ðình Ngh?
      Duong Ðình Ngh?

      Duong ??nh Ngh? was the administrator of Giao Ch? in around 931 AD. He was a skillful, talented general under Kh?c H?o, descendant of the Kh?c family who ruled Vietnam autonomously while technically under Chinese control for three generations....
      , Ki?u Công Ti?n, Ngô Dynasty
      Ngô Dynasty

      The Ng? Dynasty was a dynasty in Vietnam.Around the year 930 AD, as Ngo Quyen rose to power, northern Vietnam was a province and vassal state of China and was referred to as Tonkin ....
      , The 12 Lords Rebellion
      The 12 Lords Rebellion

      The 12 Lords Rebellion was a period of chaos and civil war in the history of Vietnam, from 966 to 968 AD during the Ng? Dynasty, due to a conflict of succession after the death of King Ng? Quy?n....
      , Ðinh Dynasty
      Ðinh Dynasty

      The ?inh Dynasty was the imperial dynasty of History of Vietnam starting in 968 when ?inh Ti?n Ho?ng vanquished the upheavals of Twelve warlords and ended as the son of ?inh Ti?n Ho?ng, ?inh Ph? ??, ceded the throne to L? Ho?n, and ending in 980....
      , Prior Lê Dynasty
      Anterior Lê Dynasty

      The Early L? Dynasty was a dynasty that ruled Vietnam after the ?inh Dynasty and before the L? Dynasty. They ruled for a total of three generations and was known for repelling the Song Dynasty invasion....
      , Lý Dynasty
      Lý Dynasty

      The L? Dynasty , sometimes known as the Posterior L? Dynasty , was a Vietnamese dynasty that began in 1009 when L? Th?i T? overthrew the Anterior L? Dynasty and ended in 1225 when the queen L? Chi?u Ho?ng was forced to abdicate the throne in favor of her husband, Tr?n C?nh....
      , Tr?n Dynasty
      Tr?n Dynasty

      The Tr?n Dynasty was a Vietnamese dynasty that ruled Vietnam from 1225 to 1400. They are credited with 3 victories over Mongol invasions of Vietnam, most notably a decisive Battle of Bach Dang ....
      , H? Dynasty
      H? Dynasty

      The H? Dynasty in History of Vietnam was a short-lived seven-year reign of two emperors, H? Qu? Ly in 1400 and his second son, H? H?n Thuong, who reigned from 1400 to 1407....
      , Fourth Chinese domination
      Fourth Chinese domination (History of Vietnam)

      The fourth Chinese domination was a period of the history of Vietnam, from 1407 to 1427, upon which, the country was ruled by the Ming Dynasty administration....
       (Vietnam
      Vietnam

      Vietnam , officially the Socialist Republic of Vietnam , is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by People's Republic of China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea to the east....
      , 544 - 1427)
    • Early Intermediate, Middle Horizon, Late Intermediate, Late Horizon
      Cultural periods of Peru

      This is a chart of Cultural periods of Peru and the Andean Region developed by Edward Lanning and used by some archaeologists studying the area....
       (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....
      , 200 - 1534)
      • Huari, Chimú, Chincha
        Chincha

        The Chincha were a Indigenous peoples of the Americas people of the Andes. They are discussed by Maria Rostworowski de Diez Canseco in "History of the Inca Realm" and by Justo Caceres Macedo in "Prehispanic Cultures of Peru" ....
        , Chanka Confederation, Tiwanaku
        Tiwanaku

        Tiwanaku is an important Pre-Columbian archaeological site in western Bolivia. Tiwanaku is recognized by Andean scholars as one of the most important precursors to the Inca Empire, flourishing as the ritual and administrative capital of a major state power for approximately five hundred years....
        , Inca
        Inca

        The Inca civilization began as a tribe in the Cuzco area, where the legendary first Sapa Inca, Manco Capac founded the Kingdom of Cuzco around 1200....
    • Late Middle Ages
      Late Middle Ages

      The Late Middle Ages is a term used by historians to describe history of Europe in the periodization of the 14th and 15th centuries . The Late Middle Ages were preceded by the High Middle Ages, and followed by the Early modern Europe ....
       European (1300–1500 CE)
  • Early modern period
    Early modern period

    The early modern period is a term used by historians to refer to the period roughly between 1500 to 1800 in Western Europe . It follows the Late Middle Ages period, and is marked by the first European colony, the rise of strong centralized governments, and the beginnings of recognizable nation states that are the direct antecedents of today'...
     (Europe
    Europe

    Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
    , 14th century - 18th century)
    • 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....
       (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
      , 14th century - 16th century)
    • Age of Discovery
      Age of Discovery

      The Age of Discovery, also known as the Age of Exploration, was a period in human history starting in the 15th Century and continuing into the 17th Century, during which Europeans explored the world by ocean searching for trading partners and particular trade goods....
       (or Exploration) (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
      , 15th century - 17th century)
    • Elizabethan period (United Kingdom
      United Kingdom

      The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
      , 1558 - 1603)
    • The Protestant Reformation
      Protestant Reformation

      The Protestant Reformation was a Christian reform movement in Europe. It is thought to have begun in 1517 with Martin Luther's Ninety-Five Theses and may be considered to have ended with the Peace of Westphalia in 1648....
       (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
      , 16th century)
    • Jacobean Era
      Jacobean era

      The Jacobean era refers to the period in England and Scotland history that coincides with the reign of King James I of England of England, who was also James VI of Scotland....
       (United Kingdom
      United Kingdom

      The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
      , 1603-1625)
    • The Age of Enlightenment (or Reason) (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
      ,18th century)
    • Tokugawa shogunate
      Tokugawa shogunate

      The Tokugawa shogunate, also known as the , and the , was a feudalism regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family....
       (Japan, 1603 - 1868)
    • Mughal Empire
      Mughal Empire

      The Mughal Empire was a Muslim imperial power of the Indian subcontinent which began in 1526, ruled most of the Indian Subcontinent by the late 17th and early 18th centuries, and ended in the mid-19th century....
       (India, 1526 - 1857)
    • Ottoman Empire
      Ottoman Empire

      The Ottoman Empire , also known by its contemporaries as the Turkish Empire or Turkey , was an empire that lasted from 1299?1923. It was Treaty of Lausanne by the Republic of Turkey, which was officially proclaimed on October 29, 1923....
       (Islam, 1299 – 1923)
    • Qing dynasty
      Qing Dynasty

      The Qing Dynasty , also known as the Manchu Dynasty, followed the Ming Dynasty in History of China, and was the last ruling Chinese Dynasties of China, ruling from 1644 to 1912 ....
       (China, 1644 - 1912)
    • Spanish hegemony
      Spanish Empire

      The Spanish Empire was one of the largest empires in world history, and one of the first global empires. It included territories and colonies ruled by Spain in Europe, the Americas, Africa, Asia and Oceania between the 15th and late 19th centuries....
       (Americas, 16th century - 1820s; Europe, 16th and 17th century, Philippines
      Philippines

      The Philippines, officially known as the Republic of the Philippines, is a country in Southeast Asia with Manila as its capital city. It comprises 7,107 islands in the western Pacific Ocean....
      , 1525 - 1898)
  • Modern era (Europe
    Europe

    Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
    , 18th century - 20th century)
    • Industrial Revolution
      Industrial Revolution

      The Industrial Revolution was a period in the late 18th and early 19th centuries when major changes in agriculture, manufacturing, production, and transportation had a profound effect on the socioeconomics and cultural conditions in United Kingdom....
       (Europe
      Europe

      Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
      , United States
      United States

      The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
      , elsewhere 18th and 19th centuries)
    • (along with early modern era) Age of European colonialism
      Colonialism

      Colonialism is the extension of a nation's sovereignty over Territory beyond its borders by the establishment of either settler or exploitation colony in which Indigenous people populations are direct rule, Population transfers, or Genocide....
       and imperialism
      Imperialism

      Imperialism has two meanings; one describing an action and the other describing an attitude.#Action: Imperialism is the practice of extending the power, control or rule by one country over areas outside its borders....
    • Napoleonic Era
      Napoleonic Era

      The Napoleonic Era is a period in the history of France and Europe. It is generally classified as including the fourth and final stage of the French Revolution, the first being the National Assembly, the second being the Legislative Assembly, and the third being the French Directory....
       (1799 - 1815)
    • Georgian Era
      Georgian era

      The Georgian era is a period of British history, normally defined as including the reigns of the kings George I of Great Britain, George II of Great Britain, George III of the United Kingdom and George IV of the United Kingdom, i.e....
       (United Kingdom
      United Kingdom

      The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
      , 1714 - 1830)
    • Victorian era
      Victorian era

      The Victorian Era of the United Kingdom of Great Britain and Ireland was the period of Victoria of the United Kingdom reign from June 1837 to January 1901....
       (United Kingdom
      United Kingdom

      The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
      , 1837 - 1901); British hegemony
      British Empire

      The British Empire comprised the dominions, Crown colony, protectorates, League of Nations mandate, and other Dependent territory ruled or administered by the United Kingdom , that had originated with the overseas colonies and trading posts established by England in the late 16th and early 17th centuries....
      , much of world, around the same time period.
    • Romantic Era (1850 - 1920)
    • Edwardian period
      Edwardian period

      The Edwardian period or Edwardian era in the United Kingdom is the period covering the reign of Edward VII of the United Kingdom, 1901 to 1910....
       (United Kingdom
      United Kingdom

      The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
      , 1901 - 1910)
    • Meiji period
      Meiji period

      The , or Meiji era, denotes the 45-year reign of the Meiji Emperor, running, in the Gregorian calendar, from 23 October 1868 to 30 July 1912. During this time, Japan started its modernization and rose to world power status....
       (Japan
      Japan

      Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
      , 1868 - 1912)
    • Machine Age
      Machine Age

      Machine Age is a term associated with the early 20th Century. Considered to be at a peak in the time between the first and second World Wars it forms a late part of the Industrial Revolution....
      (1900 - 1945)
    • World War I
      World War I

      World War I, or the First World War , was a global military conflict which involved the Great powers, organized into two opposing military alliances: the Allies of World War I and the Central Powers....
       (Much of Earth, 1914 - 1918)
    • Interwar period
      Interwar period

      The interwar period is understood, within recent Western culture, to be the period between the end of the First World War and the beginning of the Second World War....
       (Earth, 1918 - 1939 or 1937)
    • World War II
      World War II

      World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
       (Earth, 1937 or 1939 - 1945)
  • Post-Modern (Soviet Union
    Soviet Union

    The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
     and United States
    United States

    The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
    , 1949 - Present)
    • Atomic Age
      Atomic Age

      The Atomic Age, also known as the Atomic Era, is a phrase typically used to delineate the period of history following the detonation of the first nuclear bomb....
       (after 1945)
    • Cold War
      Cold War

      The Cold War was the continuing state of conflict, tension and competition that existed between a number of world powers, including the United States, the Soviet Union, People's Republic of China, France, United Kingdom and those countries' respective allies from the mid-1940s to the early 1990s....
       (Soviet Union
      Soviet Union

      The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
       and United States
      United States

      The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
      , as well their respective allied states, 1945 - 1989 or 1991)
    • Space Age
      Space Age

      The Space Age is a contemporary period encompassing the activities related to the Space Race, space exploration, space technology, and the cultural developments influenced by these events....
       (after 1957)
    • Information Age
      Information Age

      The Information Age is an idea that the current age will be characterised by the ability of individuals to transfer information freely, and to have instant access to knowledge that would have previously have been difficult or impossible to find....
       (1990 - Present)
  • Net Generation
    Net generation

    Net generation is the amount of electricity generated by a power plant that is transmitted and distributed for consumer use. Net generation is less than the total gross power generation as some power produced is consumed within the plant itself to power auxiliary equipment such as pumps, motors and pollution control devices....
     Era (present)


Though precise years and dates are often debated in academic circles.

Calendar systems


Various societies in the past have created calendar
Calendar

A calendar is a system of organize days for a social, religious, commercial or administrative purpose. This organization is done by giving names to periods of time ? typically days, weeks, months and years....
s to record events, such as religious observances and agricultural tasks. A common characteristic of most known calendars is that they measure time in relation to a particular point in history, known as the epoch date. A period between epoch dates is known as a calendar era
Calendar era

A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era ....
.

Mythological and astrological time periods


  • Astrological age
    Astrological age

    An astrological age is a time period in astrology which is believed by some to parallel major changes in the Earth's inhabitants' development, particularly relating to culture, society and politics....
    s
    • Age of Taurus
    • Age of Aries
    • Age of Pisces
    • Age of Aquarius
      Age of Aquarius

      In astrology, the Age of Aquarius is one of the twelve astrological ages. According to astrologers, it is either the next age to come, or else it is the current age....


  • Greek mythology
    Greek mythology

    Greek mythology is the body of myths and legends belonging to the Ancient Greece concerning their List of Greek mythological figures#Immortals and Greek hero cult, Cosmology#Metaphysical cosmology, and the origins and significance of their own cult and ritual practices....
    • Golden Age
      Golden age

      The term Golden age in ancient Greece mythology and legend but can also be found in other ancient cultures . It refers either to the highest age in the Greek spectrum of Iron, Bronze, Silver and Golden ages, or to a time in the beginnings of Humanity which was perceived as an ideal state, or utopia, when mankind was pure and immortal....
      , self-sufficient
    • Silver Age
      Silver age

      A silver age is a name often given to a particular period within a history, typically as a lesser and later successor to a Golden Age , the metal silver generally being valuable, but less so than gold....
      , self-indulgent
    • Bronze Age, warlike
    • Heroic Age
      Heroic Age

      The Heroic Age was the period of Greek mythological history that lay between the purely divine events of the Theogony and Titanomachy and the advent of historical time after the Trojan War....
      , nobly aspirant
    • Iron Age, violent


  • Aztec mythology
    Aztec mythology

    The Aztec civilization recognized a polytheistic mythology, which contained the many gods and supernatural creatures from their religious beliefs....
    • Nahui-Ocelotl, Destroyed by Jaguars
    • Nahui-Ehécatl, Destroyed by Hurricane
    • Nahuiquiahuitl, Destroyed by rain of Fire
    • Nahui-Atl, Destroyed by Flood
    • Nahui-Ollin, Destroyed by Earthquakes


Cosmological time periods


13.7 billion years ago: The Big Bang


Because of the scales involved (both very large and very small), cosmological time periods are usually described in second
Second

The second , sometimes abbreviated sec., is the name of a units of measurement of time, and is the International System of Units SI base unit of time....
s. In this table, each row is defined in seconds after the Big Bang
Big Bang

The Big Bang is the physical cosmology model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific method and observation....
, with earliest at the top of the chart.

StartEndPeriod
Planck epoch
Planck epoch

In physical cosmology, the Planck epoch , named after Max Planck, is the earliest period of time in the history of the universe, from zero to approximately 10−43 seconds , during which quantum gravity were significant....
Grand unification epoch
Grand unification epoch

In physical cosmology, assuming that nature is described by a Grand unification theory, the grand unification epoch was the period in the evolution of the early universe following the Planck epoch, in which the temperature of the universe was comparable to the characteristic temperatures of grand unified theory....
Inflationary epoch
Inflationary epoch

In physical cosmology the inflationary epoch was the period in the evolution of the early universe when, according to inflation theory, the universe underwent an extremely rapid exponential metric expansion of space....
Electroweak epoch
Electroweak epoch

In physical cosmology the electroweak epoch was the period in the evolution of the early universe when the temperature of the universe was high enough to merge electromagnetism and the weak interaction into a single electroweak interaction ....
Quark epoch
Quark epoch

In physical cosmology the quark epoch was the period in the evolution of the early universe when the fundamental interactions of gravitation, electromagnetism, the strong interaction and the weak interaction had taken their present forms, but the temperature of the universe was still too high to allow quarks to bind together to form hadrons....
Hadron epoch
Hadron epoch

In physical cosmology, the hadron epoch was the period in the evolution of the early universe during which the mass of the Universe was dominated by hadrons....
Lepton epoch
Lepton epoch

In physical cosmology, the lepton epoch was the period in the evolution of the early universe in which the leptons dominated the mass of the universe....
Photon epoch
Photon epoch

In physical cosmology, the photon epoch was the period in the evolution of the early universe in which photons dominated the energy of the universe....


Formation of Population III stars

The first stars were formed from the Hydrogen
Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the chemical symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly combustion and explosive Diatomic molecule gas with the molecular formula H2....
 and Helium
Helium

Helium is a colorless, odorless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2....
 formed in the Big Bang
Big Bang

The Big Bang is the physical cosmology model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific method and observation....
 were short lived massive Population III stars. Nuclear processes in these stars converted the Hydrogen and Helium into metals and other heavier elements. As the Population III stars died these heavier elements were released.

Formation of Population II stars

Population II stars contain metals formed in the Population III stars. These were longer lived than the Population III stars and some of them are still around. In addition to the metals these inherited from the Population III stars the Population II stars also formed metals by nuclear reactions and when the stars died much of that material was returned to be used as the building blocks for the next generation of stars.

5 Billion Years ago - Formation of Population I stars

Population I stars are also known as metal rich stars. Our own sun is a Population I star and was formed about 5 billion years ago.

Geologic time periods

The geologic time scale
Geologic time scale

File:Geologic clock.jpgThe geologic time scale is a chronology schema relating stratigraphy to time that is used by geologys and other earth sciences scientists to describe the timing and relationships between events that have occurred during the history of the Earth....
 covers the extent of the existence of Earth, from about 4600 million years ago to the present day. It is marked by Global Boundary Stratotype Sections and Points
Global Boundary Stratotype Section and Point

A Global Boundary Stratotype Section and Point, abbreviated GSSP, is an internationally agreed upon stratigraphy section which serves as the reference section for a particular boundary on the geologic time scale....
. Geologic time units are (in order of descending specificity) eons, eras, periods, epochs, and ages; and the corresponding chronostratigraphic
Chronostratigraphy

Chronostratigraphy is the branch of stratigraphy that studies the age of rock stratum in relation to time.The ultimate aim of chronostratigraphy is to arrange the sequence of deposition and the time of deposition of all rocks within a geological region, and eventually, the entire geologic record of the Earth....
 units, which measure "rock-time", are eonothems, erathems, systems, series, and stages.

The second and third timelines are each subsections of their preceding timeline as indicated by asterisks. The Cenozoic is sometimes divided into the Quaternary
Quaternary

The Quaternary Period is the Geologic Time Scale period after the Neogene Period, spanning 1.805 +/- 0.005 million years ago to the present. The Quaternary includes two geologic epochs: the Pleistocene and the Holocene epoch ....
 and Tertiary
Tertiary

The Tertiary is a a term for a Geologic time scale#Terminology 65 million to 1.8 million years ago. The Tertiary covered the time span between the superseded Secondary period and an out-of-date definition of the Neogene#Controversy....
 periods, although their use is no longer official.

See also

  • Exponential timeline shows all history on one page in ten lines.
  • Periodization
    Periodization

    Periodization is the attempt to categorize or divide time into named blocks. The result is a descriptive abstraction that provides a useful handle on periods of time with relatively stable characteristics....
     for a discussion of the tendency to try to fit history into non-overlapping periods.
  • List of fossil sites
    List of fossil sites

    This is a worldwide list of important and/or well-known localities where fossils have been found. Such locations may either be a geological formation or a single site....
     with link directory
  • List of timelines
    List of timelines

    This is a list of timelines....