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Greater Khorasan

 
Greater Khorasan

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Greater Khorasan



 
 
Greater Khorasan (also written Khorasaan, Khurasan and Khurasaan) is a modern term for a geographic region spanning (in clockwise order) north-eastern Iran
Iran

Iran , officially the Islamic Republic of Iran and formerly known internationally as Persian Empire until 1935, is a country in Central Eurasia, located on the northeastern shore of the Persian Gulf and the southern shore of the Caspian Sea....
, Turkmenistan
Turkmenistan

Turkmenistan is a Turkic peoples country in Central Asia. Until 1991, it was a constituent republic of the Soviet Union, the Turkmen Soviet Socialist Republic ....
, Uzbekistan
Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan , is a Landlocked_country#Doubly_landlocked_country country in Central Asia, formerly part of the Soviet Union....
, Tajikistan
Tajikistan

Tajikistan , officially the Republic of Tajikistan , is a mountainous landlocked country in Central Asia. Afghanistan borders to the south, Uzbekistan to the west, Kyrgyzstan to the north, and People's Republic of China to the east....
 and north-western Afghanistan
Afghanistan

Afghanistan , officially the Islamic republic of Afghanistan, is a landlocked country that is located approximately in the center of Asia....
. The name "Khorasan" is said to derive from Middle Persian
Middle Persian

Middle Persian is the Iranian languages language/ethnolect of Southwestern Iran that during Sassanid times became a prestige dialect and so came to be spoken in other regions as well....
 khor "sun" + ayan "out of", hence meaning "land where the sun rises".






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Califate 750
Greater Khorasan (also written Khorasaan, Khurasan and Khurasaan) is a modern term for a geographic region spanning (in clockwise order) north-eastern Iran
Iran

Iran , officially the Islamic Republic of Iran and formerly known internationally as Persian Empire until 1935, is a country in Central Eurasia, located on the northeastern shore of the Persian Gulf and the southern shore of the Caspian Sea....
, Turkmenistan
Turkmenistan

Turkmenistan is a Turkic peoples country in Central Asia. Until 1991, it was a constituent republic of the Soviet Union, the Turkmen Soviet Socialist Republic ....
, Uzbekistan
Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan , is a Landlocked_country#Doubly_landlocked_country country in Central Asia, formerly part of the Soviet Union....
, Tajikistan
Tajikistan

Tajikistan , officially the Republic of Tajikistan , is a mountainous landlocked country in Central Asia. Afghanistan borders to the south, Uzbekistan to the west, Kyrgyzstan to the north, and People's Republic of China to the east....
 and north-western Afghanistan
Afghanistan

Afghanistan , officially the Islamic republic of Afghanistan, is a landlocked country that is located approximately in the center of Asia....
. The name "Khorasan" is said to derive from Middle Persian
Middle Persian

Middle Persian is the Iranian languages language/ethnolect of Southwestern Iran that during Sassanid times became a prestige dialect and so came to be spoken in other regions as well....
 khor "sun" + ayan "out of", hence meaning "land where the sun rises". For other suggested etymologies, see Khwarezm
Khwarezm

Khwarezm were a series of states centered on the Amu Darya river delta of the former Aral Sea, in Greater Iran , extending across the Ust-Urt plateau and possibly as far west as the eastern shores of the northern Caspian Sea....
.

First established as a political entity by the Sassanids in the 3rd century, the borders of the region have varied considerably during its 1600-year history. It acquired its greatest extent under the Caliphs
Caliphate

The caliphate represented the political leadership of the Muslim ummah in classical and medieval Islamic history and juristic theory. The head of state's position is based on the notion of a successor to the Prophets of Islam Muhammad's political authority....
, for whom "Khorasan" was the name of one of the three political zones under their dominion (the other two being Eraq-e Arab "Arabic Iraq" and Eraq-e Ajam "Non-Arabic Iraq"). For the Abbasids, "Khorasan" was the zone that lay east of a virtual boundary that ran in northwest-southeast direction between Ray
Ray, Iran

Ray, also spelled Rey, Rayy, Rhages or Rages is the oldest existing city in the Tehran province, Iran....
 and Bandar Abbas
Bandar Abbas

Bandar Abbas or Bandar-e ?Abbas is a seaport city and capital of Hormozgan Province on the southern coast of Iran , on the Persian Gulf. The city occupies a strategic position on the narrow Straits of Hormuz, and it is the location of the main base of the Iranian Navy....
, and included (in clockwise order) all of present-day northeastern Iran, the Transoxiana
Transoxiana

Transoxiana is the ancient name used for the portion of Central Asia corresponding approximately with modern-day Uzbekistan, Tajikistan and southwest Kazakhstan....
 portions of Central Asia, all of (pre-Durand line) Afghanistan, and all of present-day Iran's Sistan/Baluchistan province. In general however, "Khorasan" did not extend so far east or south. Following the assassination of Nadir Shah Afsar in 1747, wars over the region caused its division into western and eastern parts, with the western half held by the Qajars, and the eastern half held by the Durrani
Durrani

Durrani or Abdali is the name of a chief tribal confederation in Afghanistan and Pakistan. Originally known by their ancient name saduzai, they have been called Durrani since the beginning of the Durrani Empire in 1747....
s. By the late 1800s, the name Khorasan applied to only a fraction of Greater Khorasan, with the eastern and northeastern sections having by then become parts of Afghanistan and parts of the Russian Empire
Russian Empire

File:Russian Emperor Flag.jpgFile:Romanov Flag.svgThe Russian Empire was a state that existed from 1721 until the Russian Revolution of 1917....
 respectively, and the western section having been vertically subdivided into Khorasan (in the north) and Kohistan (in the south). Khorasan and Kohistan were subsequently re-split, with the western/southwestern parts of each then merging with the then-small Yazd province to become the large Yazd province
Yazd Province

Yazd is one of the 30 provinces of Iran of Iran. It is in the centre of the country, and its center is Yazd.The province has an area of 73,467 km?, and according to the most recent divisions of the country, is divided into ten counties: Maybod, Mehreez, Taft, Yazd, Ardakan, Behabad, Khatam, Sadogh, Bafq, Abar Kooh and Yazd, the capital....
 of today, and the remaining Khorasan/Kohistan being united as a new Khorasan province. That new Khorasan remained Iran
Iran

Iran , officially the Islamic Republic of Iran and formerly known internationally as Persian Empire until 1935, is a country in Central Eurasia, located on the northeastern shore of the Persian Gulf and the southern shore of the Caspian Sea....
's largest province until 2002, when it was subdivided into three sub-provinces. The formerly Russian-held part of Greater Khorasan now spans Tajikistan
Tajikistan

Tajikistan , officially the Republic of Tajikistan , is a mountainous landlocked country in Central Asia. Afghanistan borders to the south, Uzbekistan to the west, Kyrgyzstan to the north, and People's Republic of China to the east....
, Turkmenistan
Turkmenistan

Turkmenistan is a Turkic peoples country in Central Asia. Until 1991, it was a constituent republic of the Soviet Union, the Turkmen Soviet Socialist Republic ....
 and Uzbekistan
Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan , is a Landlocked_country#Doubly_landlocked_country country in Central Asia, formerly part of the Soviet Union....
.

The principal cities of Greater Khorasan are Mashhad
Mashhad

Mashhad is the List of largest cities and second largest cities by country city in Iran and one of the Holiest sites in Islam in the Shia world....
, Nishapur
Nishapur

Nishapur, or Neyshabur , is a city in the Razavi Khorasan province in northeastern Iran, situated in a fertile plain at the foot of the Mount Binalud, near the regional capital of Mashhad....
, Tus (now in Iran), Herat
Herat

Herat , classically called the Aria, is a city in western Afghanistan, in the province also known as Herat province. It is situated in the valley of the Hari River, Afghanistan, which flows from the mountains of central Afghanistan to the Karakum Desert in Turkmenistan....
, Balkh
Balkh

Balkh , also known as Bactra, was once a major world city but was destroyed entirely by the Mongols. Today it is a small town in the Balkh Province, northern Afghanistan, about 20 kilometers northwest of the provincial capital, Mazar-e Sharif, and some 74 km south of the Amu Darya, the Oxus River of antiquity, of which a tributary form...
, Kabul
Kabul

Kabul is the Capital and largest city of Afghanistan, with a population of approximately three million. It is an economic and cultural centre, situated 5,900 foot above sea level in a narrow valley, wedged between the Hindu Kush mountains along the Kabul River....
 and Ghazni
Ghazni

Ghazni City is a city in central Afghanistan, with an approximate population of 141,000 people. It is the capital of Ghazni Province, situated on a plateau at 7,280 feet above sea level....
 (now in Afghanistan), Merv
Merv

Merv , formerly Achaemenid Satrapy of Margiana, and later Alexandria and Antiochia in Margiana , was a major oasis-city in Central Asia, on the historical Silk Road, located near today's Mary, Turkmenistan in Turkmenistan....
 (now in Turkmenistan), Samarqand, Bukhara
Bukhara

Bukhara , also spelled as Bukhoro and Bokhara, from the Soghdian ?uxarak , is the Capital of the Bukhara Province of Uzbekistan. The nation's fifth-largest city, it has a population of 237,900 ....
 and Khiva
Khiva

Khiva ; Alternative or historical names include Khorasam, Khoresm, Khwarezm, Khwarizm, , Khwarazm, Chiwa, and Chorezm) is the former capital of Khwarezmia and the Khanate of Khiva and lies in the present-day Xorazm Province of Uzbekistan....
 (all now in Uzbekistan
Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan , is a Landlocked_country#Doubly_landlocked_country country in Central Asia, formerly part of the Soviet Union....
), Khujand
Khujand

Khujand , also transliterated as Khudzhand, , formerly Khodjend or Khodzhent until 1939 and Leninabad until 1992, is the second-largest city of Tajikistan....
 and Panjakent
Panjakent

Panjakent , also spelled Panjikent or Panjekent, is a city in the Sughd province of Tajikistan on the Zeravshan river, with a population of 33,000 ....
 (now in Tajikistan).

These days, the adjective greater is partly used to distinguish it from Khorasan province
Khorasan

Khorasan Khorasan is famous world wide for its saffron and Berberis#Zereshk which are produced in the southern cities of the province. Production is more than 170 tons per year....
, in modern-day Iran
Iran

Iran , officially the Islamic Republic of Iran and formerly known internationally as Persian Empire until 1935, is a country in Central Eurasia, located on the northeastern shore of the Persian Gulf and the southern shore of the Caspian Sea....
, that forms western parts of these territories, roughly half in area . It is also used to indicate that Greater Khorasan encompasses territories that were perhaps called by some other popular name when they were individually referred to. For example Transoxiana
Transoxiana

Transoxiana is the ancient name used for the portion of Central Asia corresponding approximately with modern-day Uzbekistan, Tajikistan and southwest Kazakhstan....
 (covered Uzbekistan and Tajikistan), Bactria
Bactria

Bactria is a historical region of Greater Iran. Known by the ancient Greeks as "Bactriana" the region is located between the range of the Hindu Kush and the Amu Darya ; in later times, the region became known as Tokharistan. The name of the region has survived to present time in the name of Afghan province "Balkh"....
, Kabulistan
Kabulistan

Kabulistan is a historical term referring to the eastern territories of Greater Khorasan that is centered around present-day Kabul, Afghanistan....
, Khwarezm
Khwarezm

Khwarezm were a series of states centered on the Amu Darya river delta of the former Aral Sea, in Greater Iran , extending across the Ust-Urt plateau and possibly as far west as the eastern shores of the northern Caspian Sea....
 (containing Samarkand and Bukhara) .

Until the devastating Mongol invasion of the thirteenth century, Khorasan was considered the cultural capital of Persia. It has produced scientists and philosophers such as the Avicenna
Avicenna

, known as Abu Ali Sina Balkhi or Ibn Sina and commonly known in English by his Latinized name Avicenna , was a Persian people polymath and the foremost Islamic medicine and Early Islamic philosophy of his time....
, al-Farabi
Al-Farabi

Abu Nasr al-Farabi , known in the Western world as Alpharabius , was a Muslim polymath and one of the greatest Islamic sciences and Early Islamic philosophys of History of Iran and the Islamic Golden Age in his time....
, al-Biruni
Al-Biruni

, often known as 'Alberuni', 'Al Beruni' or variants, was a Persian people polymath scholar of the 11th century.He was a Islamic science and Islamic physics, an Anthropology and Comparative sociology, an Islamic astronomy and Alchemy and chemistry in Islam, a critic of Alchemy and chemistry in Islam and Islamic astrology, an encyc...
, Omar Khayyám
Omar Khayyám

Omar Khayyam was a Persian peoples polymath: Islamic mathematics, Iranian philosophy, Islamic astronomy and above all Persian literature.He has also become established as one of the major mathematicians and astronomers of the medieval period....
, al-Khwarizmi (all of whom were Shi'a Muslims), Shi'a theologians
Ja'fari jurisprudence

Ja?fari school of thought, Ja?fari jurisprudence or Ja?fari Fiqh is the school of fiqh of Shi'a Muslims, derived from the name of Ja'far al-Sadiq, the 6th Imamah ....
, namely Nasir al-Din al-Tusi and Shaykh Tusi
Shaykh Tusi

Shaykh Tusi , full name: Abu Jafar Muhammad Ibn Hassan Tusi , known as Shaykh al-Ta?ifah was a prominent Persian people scholar of the Shi'a Islam Twelver Islamic belief...
, as well as Sunni theologians, namely Ahmad ibn Hanbal
Ahmad ibn Hanbal

Ahmed ibn Hanbal was an important Muslim scholar and theology born in Khorasan to a family of an Arab origin He is considered the founder of the Hanbali school of fiqh ....
 and Al-Ghazali
Al-Ghazali

Abu ?amid Mu?ammad ibn Mu?ammad al-Ghazali was born and died in Tus, in the Khorasan province of Persia. He was an Islamic theology, Fiqh, Islamic philosophy, Islamic astronomy, Islamic psychology and Sufism of Persian people origin, and remains one of the most celebrated scholars in the history of Sunni Islamic thought....
. Ferdowsi
Ferdowsi

Hakim Abu'l-Qasim Firdawsi Tusi , more commonly transliterated as Ferdowsi , was a highly revered Persian people poet. He was the author of the Shahnameh, the national epic of Iran as well as other Persian communities in other countries....
, the author of Shahnameh
Shahnameh

File:Ferdowsi tehran.jpg Shahnam?, or Shahnama , "The Great Book" , is an enormous poetic opus written by the Persian literature Ferdowsi around 1000 AD and is the national epic of Iran....
, the national epic of Iran, was also from Khorasan.

Geographical Distribution

According to Mir Ghulam Mohammad Ghobar, Afghanistan's current territories formed the major part of Khorasan. According to these latter sources, Khorasan province of Iran roughly comprises half of Greater Khorasan. Khorasan's boundaries have varied greatly during ages. The term was loosely applied to all territories of Persia that lay east and north east of Dasht-e Kavir
Dasht-e Kavir

Dasht-e Kavir , also known as Kavir-e Namak or Great Salt Desert is a large desert lying in the middle of the Plateau of Iran. It is about 800 kilometers long and 320 kilometers wide with a total surface area of about 77,600 square kilometers ....
 and therefore were subjected to change as the size of empire changed. In the 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...
, Persian Iraq
Persian Iraq

Persian Iraq or Iraq-i Ajam is an obsolete term for the central region of Iran, including cities such as Isfahan, Ray, Iran, Qazvin, and Kashan....
 and Khorasan were the two most important parts of the territory of Greater Iran
Greater Iran

Greater Iran refers to the regions that have significant Iranian cultural influence. It roughly corresponds to the territory surrounding the Iranian plateau, stretching from the Caucasus to the Indus River, and conform to the historical understanding of the full territory of "Etymology of Iran."...
. The dividing region between these two was mostly along with Gurgan and Damaghan
Damghan

Damghan is a city in Semnan Province, Iran, from Tehran on the high-road to Meshed, at an elevation of . It has grown from a population of 34,057 to an estimated 72,098 ....
 cities. Especially the Ghaznavids
Ghaznavid Empire

The Ghaznavids were an Islamic and Persianate dynasty of Turkic peoples mamluk origin which existed from 975 to 1187 and ruled much of Persia, Transoxania, and the northern parts of the Indian subcontinent....
, Seljuqs
Seljuq dynasty

The Seljuq were a Turco-Persian Sunni Muslim dynasty that ruled parts of Central Asia and the Middle East from the 11th to 14th centuries. They set up an empire known as Great Seljuq Empire that stretched from Anatolia through Persia and was the target of the First Crusade....
 and Timurids
Timurid Dynasty

The Timurids, self-designated Gurkani , were a Persianate society Central Asian Sunni Islam dynasty of originally Turko-Mongol descent whose empire included the whole of Central Asia, Iran, modern Afghanistan and Pakistan, as well as large parts of India, Mesopotamia and Caucasus....
, divided their Empire to Iraqi and Khorasani regions. This point can be observed in many books such as "Tarikhi Bayhaqi" of Abul Fazl Bayhqi, Faza'ilul al-anam min rasa'ili hujjat al-Islam (a collection of letters of Al-Ghazali
Al-Ghazali

Abu ?amid Mu?ammad ibn Mu?ammad al-Ghazali was born and died in Tus, in the Khorasan province of Persia. He was an Islamic theology, Fiqh, Islamic philosophy, Islamic astronomy, Islamic psychology and Sufism of Persian people origin, and remains one of the most celebrated scholars in the history of Sunni Islamic thought....
) and other books.

Ghulam Mohammad Ghubar, a historian from Afghanistan, talks of Proper Khorasan and Improper Khorasan in his book titled "Khorasan". According to him, Proper Khorasan contained regions lying between Balkh (in the East), Merv (in the North), Sijistan
Sistan

Modern Sistan is a border region in southeastern Iran and southwestern Afghanistan . In ancient times the area was known as Arachosia; it became known as 'Sakastan' in the 1st century BC, after it was conquered by the Saka tribes....
 (in the South), Nishapur (in the West) and Herat, known as The Pearl of Khorasan, in the center. While Improper Khorasan's boundaries extended to Kabul and Ghazni in the East, Sistan
Sistan

Modern Sistan is a border region in southeastern Iran and southwestern Afghanistan . In ancient times the area was known as Arachosia; it became known as 'Sakastan' in the 1st century BC, after it was conquered by the Saka tribes....
 and Zabulistan
Zabulistan

Zabulistan , also spelled Zabolestan, is a historical region in the border area of today's Iran and Afghanistan....
 in the South, Transoxiana and Khwarezm in the North and Damaghan
Damghan

Damghan is a city in Semnan Province, Iran, from Tehran on the high-road to Meshed, at an elevation of . It has grown from a population of 34,057 to an estimated 72,098 ....
 and Gurgan
Gorgan

Gorgan is the capital of the Golestan Province, Iran. It is approximately 400 km from Tehran. It had an estimated population of 241,177 in 2005....
 in the West.

In Memoirs of Babur
Baburnama

Baburnama are the memoirs of Babur , the founder of the Mughal Empire and a great-great-great-grandson of Tamerlane. It is an autobiographical work, originally written in the Chagatai language, known to Babur as "Turki" , the spoken language of the Andijan-Timurids....
, it is mentioned that Indians called non-Hindustanis (non-Indians) as Khorasanis. Regarding the boundary of Hindustan
Hindustan

Hindustan is one of the popular names of India. Though the meaning of Hindustan has evolved over the years, after the Partition of India it primarily refers to modern India....
 and Khorasan, it is written: "On the road between Hindustan and Khorasan, there are two great marts: the one Kabul, the other Kandahar." Thus, Improper Khorasan bordered Hindustan (old 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....
).

Historical overview

Greater Khorasan is one of the regions of Greater Iran
Greater Iran

Greater Iran refers to the regions that have significant Iranian cultural influence. It roughly corresponds to the territory surrounding the Iranian plateau, stretching from the Caucasus to the Indus River, and conform to the historical understanding of the full territory of "Etymology of Iran."...
. Before being conquered by Alexander the Great
Alexander the Great

Alexander the Great , also known as Alexander III of Macedon was an ancient Greeks King of Macedon . He was one of the most successful military commanders of all time and is presumed undefeated in battle....
 in 330 BC, it was part of the Achaemenid and Median
Median

In probability theory and statistics, a median is described as the number separating the higher half of a sample, a population, or a probability distribution, from the lower half....
 Persian Empire
Persian Empire

The 'Persian Empire' was a series of successive Iranian or Persianization empires that ruled over the Iranian plateau, the original Persian homeland, and beyond in Southwest Asia, South Asia, Central Asia and the Caucasus....
. In 1st century AD, the eastern regions of Greater Khorasan fell into the hands of the Kushan empire
Kushan Empire

The Kushan Empire of Ancient India originally formed in Bactria on either side of the middle course of the Oxus River or Syr Darya in what is now northern Afghanistan, Pakistan, southern Tajikistan and Uzbekistan....
. The Kushans introduced to a high grade Buddhist culture (though they were also Zoroastrians) to these regions and from where Buddhism began to spread by Khorasanian monks to China and even to Japan. Numerous Kushanian fire temples and Buddhist temples and buried cities with treasures in the northern and central areas of Khurasan (nowadays mainly Afghanistan) have been found. However the western parts of Greater Khorasan remained predominantly Zoroastrian as one of the three great fire-temples of the Sassanids "Azar-burzin Mehr" is situated in the western regions of Khorasan, near Sabzevar in Iran. The boundary was pushed to the west towards the Persian Empire by the emigrating Kushans. The boundary kept changing until the demise of the Kushan Empire
Kushan Empire

The Kushan Empire of Ancient India originally formed in Bactria on either side of the middle course of the Oxus River or Syr Darya in what is now northern Afghanistan, Pakistan, southern Tajikistan and Uzbekistan....
 where Sassanids took control of the entire region by conquering and merging with the Kushans (Kushano-Sassanian civilization). In Sassanid
Sassanid Empire

The Sassanid Empire or Sassanian Dynasty is the name of the last pre-Islamic Iranian empire. It was one of the two main powers in Western Asia for a period of more than 400 years....
 era, Persian empire
Persian Empire

The 'Persian Empire' was a series of successive Iranian or Persianization empires that ruled over the Iranian plateau, the original Persian homeland, and beyond in Southwest Asia, South Asia, Central Asia and the Caucasus....
 was divided into four quarters, "Xwawaran" meaning west, apAxtar meaning north, Nimruz meaning south and Xurasan (Khorasan) meaning east. The Eastern regions saw again some conflict with Hephthalite
Hephthalite

The Hephthalites or White Huns were a Central Asian nomadic confederation whose precise origins and composition remain obscure. They were called Ephthalites by the Huns, and Hunas by the Indian subcontinent....
s who became new ruler of entire Khorasan but also for a short time of the entire Iranian plateau, but the borders remained much stable afterwards until the Muslim invasion.

Being the eastern parts of the Sassanid empire
Sassanid Empire

The Sassanid Empire or Sassanian Dynasty is the name of the last pre-Islamic Iranian empire. It was one of the two main powers in Western Asia for a period of more than 400 years....
 and further away from Arabia, Khorasan quarter was conquered in the later stages of Muslim invasions. In fact the last Sassanid king of Persia, Yazdgerd III, moved the throne to Khorasan following the Arab invasion in the western parts of the empire. After the assassination of the king, Khorasan was conquered by the Islamic troops in 647. Like other provinces of Persia it became one of the provinces of Umayad dynasty. The first liberal movement against the Arab invasions was led by Abu Muslim Khorasani between 747 and 750. He helped the Abbasid
Abbasid

The Abbasid Caliphate was the third of the Islamic Caliphates of the Islamic Empire. The Caliphate is one of the high points of Islam, and at the time Muslim civilization, together with that of Byzantium, China and India, was the most developed part of the world....
s come to power but was later killed by Al-Mansur, an Abbasid Caliph. The first independent kingdom from Arab rule was established in Khorasan by Tahir Phoshanji
Tahir ibn Husayn

Tahir ibn Husayn was a general and governor during the Abbasid caliphate. Specifically, he served under al-Ma'mun and led the armies that would defeat al-Amin, making al-Ma'mun the caliph....
 in 821. But it seems that it was more a matter of political and territorial gain. In fact Tahir had helped the Caliph subdue other nationalistic movements in other parts of Persia such as Maziar
Maziar

Maziar was an Iranian peoples aristocrat of the House of Karen and feudal ruler of the mountainous region of Tabaristan . For his resistance to the Arabs, Maziar is considered one the national heroes of Greater Iran....
's movement in Tabaristan.

The first dynasty in Khorasan, after the introduction of Islam, was the Saffarid dynasty
Saffarid dynasty

The Saffarid dynasty , was an Iranian empire which ruled in Sistan , a historical region in southeastern Iran and southwestern Afghanistan.. Their capital was Zaranj....
 (861-1003). Other major dynasties in Khorasan were Samanid
Samanid

The Samanid dynasty or Samanids was an Iranian Persian empire in Central Asia and Greater Khorasan, named after its founder Saman Khuda who converted to Sunni Islam despite being from Zoroastrianism theocratic nobility....
s (875-999), Ghaznavids
Ghaznavid Empire

The Ghaznavids were an Islamic and Persianate dynasty of Turkic peoples mamluk origin which existed from 975 to 1187 and ruled much of Persia, Transoxania, and the northern parts of the Indian subcontinent....
 (962-1187), Ghurids
Ghurids

The Ghurids or Ghorids were a Persian people and Muslim dynasty in Greater Khorasan, most likely of Eastern Iranian Tajiks origin. The Ghurid empire was based in the region of Ghor Province , and stretched over a vast area that included the whole of Afghanistan, parts of modern Iran and South Asia ....
 (1149-1212), Seljukids
Seljuq dynasty

The Seljuq were a Turco-Persian Sunni Muslim dynasty that ruled parts of Central Asia and the Middle East from the 11th to 14th centuries. They set up an empire known as Great Seljuq Empire that stretched from Anatolia through Persia and was the target of the First Crusade....
 (1037-1194), Khwarezmids
Khwarezmian Empire

The Khwarezmian dynasty, more commonly known as Khwarezm Shahs or Khwarezm-Shah dynasty was a Persianate society Sunni Muslim dynasty of Turco-Persian mamluk origin which ruled Greater Iran, first as vassals of the Seljuqs and later as independent rulers in the 11th century....
 (1077-1231) and Timurids
Timurid Dynasty

The Timurids, self-designated Gurkani , were a Persianate society Central Asian Sunni Islam dynasty of originally Turko-Mongol descent whose empire included the whole of Central Asia, Iran, modern Afghanistan and Pakistan, as well as large parts of India, Mesopotamia and Caucasus....
 (1370-1506). It should be mentioned that some of these dynasties were not Persian by ethnicity, nonetheless they were the advocates of Persian language
Persian language

name=Persian|nativename=|pronunciation=[f??r'si]|image=|caption=Farsi in Perso-Arabic script |states= Iran, Afghanistan, Tajikistan, Uzbekistan, and Bahrain....
 and were praised by the poets as the kings of Iran
Greater Iran

Greater Iran refers to the regions that have significant Iranian cultural influence. It roughly corresponds to the territory surrounding the Iranian plateau, stretching from the Caucasus to the Indus River, and conform to the historical understanding of the full territory of "Etymology of Iran."...
.

Among them, the periods of Ghaznavids
Ghaznavid Empire

The Ghaznavids were an Islamic and Persianate dynasty of Turkic peoples mamluk origin which existed from 975 to 1187 and ruled much of Persia, Transoxania, and the northern parts of the Indian subcontinent....
 of Ghazni
Ghazni

Ghazni City is a city in central Afghanistan, with an approximate population of 141,000 people. It is the capital of Ghazni Province, situated on a plateau at 7,280 feet above sea level....
 and Timurids
Timurid Dynasty

The Timurids, self-designated Gurkani , were a Persianate society Central Asian Sunni Islam dynasty of originally Turko-Mongol descent whose empire included the whole of Central Asia, Iran, modern Afghanistan and Pakistan, as well as large parts of India, Mesopotamia and Caucasus....
 of Herat are considered as one of the most brilliant eras of Khorasan's history. During these periods, there was a great cultural awakening. Many famous Persian poets, scientists and scholars lived in this period. Numerous valuable works in Persian literature
Persian literature

Persian literature spans two and a half millennia, though much of the pre-Islamic material has been lost. Its sources has been within historical greater Iran including present-day Iran as well as reigions of Central Asia where the Persian language has been the national language through history....
 were written. Nishapur
Nishapur

Nishapur, or Neyshabur , is a city in the Razavi Khorasan province in northeastern Iran, situated in a fertile plain at the foot of the Mount Binalud, near the regional capital of Mashhad....
, Herat
Herat

Herat , classically called the Aria, is a city in western Afghanistan, in the province also known as Herat province. It is situated in the valley of the Hari River, Afghanistan, which flows from the mountains of central Afghanistan to the Karakum Desert in Turkmenistan....
, Ghazni
Ghazni

Ghazni City is a city in central Afghanistan, with an approximate population of 141,000 people. It is the capital of Ghazni Province, situated on a plateau at 7,280 feet above sea level....
 and Merv
Merv

Merv , formerly Achaemenid Satrapy of Margiana, and later Alexandria and Antiochia in Margiana , was a major oasis-city in Central Asia, on the historical Silk Road, located near today's Mary, Turkmenistan in Turkmenistan....
 were the centers of all these cultural developments. Some eastern Khorasani regions were then parts of the Moghul Empire, while the Safavids conquered the western regions. For Moghuls, Khorasan was always a region with great economic and cultural importance.

Demographics of Greater Khurasan

Originally the region of Khorasan was inhabited only by Bactrians, Soghdians, Parthians, Sakas etc. who called themselves Aryans and their country as Aryanam-Vaej (Land of Aryans). But during all periods Khorasan became a new home for different people with different origins or was conquered, though most of these people were Indo-Europeans. In pre-Islamic times the Iranian tribes became mixed with each other, especially with the Persians. Because of its popularity, wealth, and legends that were made about Khorasan, many western Iranians, particularly Persians, were seeking for a new home and a better future, especially after civil wars. They moved to Bactria, Kabul, Sogdhiana, Gandhara and even to India (Gujarat and Bombey, f.exp.) and to other regions. Also some Achaemenids and Sassanians were resettling Persians from western Iran to eastern Iran when the population was overspilling and the pollution was increasing. Before the Islamic invasion began, the Eastern-Iranians were already merged with the West-Iranians, mostly Persians. Modern Persians have a very important Sogdian and Parthian (and also Bactrian) ancestry. A very small part of them became assimilated and another part was able to remain ethnically unchanged until the conquest of the nomadic Turko-Mongolians (and until today). This Altaic wave brought new peoples to Transoxania and Greater Khorasan from the north and east of Asia. Some of these Turks and Mongols became Islamized by the urban and educated population so they were able to establish with their help and bureaucracy powerful Persianated empires and become to a certain grade also settlers or in some regions of central Asia (like in Uzbekistan
Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan , is a Landlocked_country#Doubly_landlocked_country country in Central Asia, formerly part of the Soviet Union....
, Azerbaijan
Azerbaijan

Azerbaijan , officially the Republic of Azerbaijan , is the largest and most populous country in the South Caucasus, located partially in Eastern Europe and partially in Western Asia....
, Turkey
Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country that stretches across the Anatolian peninsula in southwest Asia and Thrace in the Balkans region of Southern Europe....
) turkificating the Iranian and other Indo-European population either by language or traditions and culture. Sometimes, as their Iranian precursor, their empires reached also India and Indian merchants, craftsmen, historians, teachers, scholars etc. were moving to Greater Khorasan. The turbulent history of Khorasan is still reflected by its population. Nearly every ethnic of Indo-European and Non-Indo-European origin can be found in Khorasan. From Turks like Uzbeks, Kazakhs, Afsharis and Mongols
Mongols

The name Mongol specifies one or several ethnic groups, now mainly located in Mongolia, China, and Russia....
 like Arghunes, Persian-speaking Hazaras etc. to Iranians like Tajiks
Tajiks

Tajik is a general designation for a wide range of mostly Persian language peoples of Iranian peoples, with traditional homelands in present-day Afghanistan, Tajikistan, southern Uzbekistan, north west Pakistan and western China....
 (Persians), Pashais and Ormurs. But the majority of Khorasans' population is made of Indo-European-speaking people by more than 80%. Concerning the Turkic states of central Asia, genetic evidences prove by far more an Iranian origin rather than a Turkic one which means that most so-called Turkic states in central Asia (Greater Khorasan) are originally descendants of Iranian people that became turkificated by small but military powerful tribes.