The early history of Buddhism in Central Asia was influenced not only by the political and cultural developments of the Indian, Iranian and Greek civilizations. China also played an important role. Let us next examine some of the Central Asian ramifications that arose from developments within China and the nomadic migrations they caused.
The Shakas and the Yuezhi
China was first unified by the Qin Dynasty (221–206 BCE). Confucianism and Daoism had developed during the Warring States period prior to this (481–221 BCE). The Qin founder, however, conducted a widescale burning of books, as the result of which much of the earlier learning and rituals were lost. He built the first Great Wall as a defense against the peoples of Mongolia. The Qin was followed by the Han Dynasty (206 BCE – 220 CE).
At approximately the same time as the establishment of the Han, the Xiongnu (匈奴)Empire was founded in Mongolia and East Turkistan. This empire, centered in Mongolia and divided in 58 CE, lasted until the early third century CE. The Xiongnu, who spoke a Siberian tongue, controlled trade along the Silk Route and had almost constant warfare with Han China. From the Xiongnu, the Chinese derived the customs of wearing pants and fighting with a cavalry of mounted archers.
Due to the expansion of these Xiongnu and, behind them, the Han Empire of China, a Hunnic group, known to the Chinese as the Yuezhi (月氏), were driven out of modern-day western Gansu and East Turkistan between 177 and 165 BCE. The Yuezhi were referred to as Tokharians in Greek sources. Their tribes scattered in different directions, but the major group went northwest to the steppes of the Ili River area of Kazakhstan and Dzungaria. They drove south the nomadic Shaka people who had been in the Kazakhstan area since the Achaemenid times, occasionally allied with the more settled Sogdians. Like the Shakas, the Yuezhi were ethnically Turkic but spoke an Iranian tongue.
In the mid-second century BCE, the Shakas conquered Sogdia from the Greco-Bactrian Kingdom. They went on to take Bactria itself in 139 BCE, during the reign of the Greco-Bactrian Buddhist King Menandros. In Bactria, the Shakas began to turn to Buddhism.
During the end of the second century BCE, the Yuezhi began to move south from the Ili River area, driving the Shakas further south ahead of them. By around 100 BCE, they had already conquered Sogdia and Bactria from the Shakas, and settled in these areas, assimilating Buddhism. The Bactria area and eastwards to the Pamir Mountains became known as Tokharistan. The Yuezhi became known as the Kushans, and this was the start of the Kushan Dynasty.
Although the Shakas had at times been allied with the Parthians against the Yuezhi, this was not a stable arrangement. Driven out of Bactria, the Shakas took from the Parthian Empire the area of modern-day southern Afghanistan and Baluchistan, which became their main base. In the late first century BCE, the Shakas took Gandhara as well and ended the Greco-Bactrian rule in northwestern India, which had contracted to this area.
Early Chinese Influence in Central Asia
The Han Dynasty was the first Chinese power to extend its political influence into East Turkistan. This occurred under the rule of Emperor Wu of Han (140–87 BCE), in a policy aimed not only at territorial expansion, but also at containment of the Xiongnu who continued to raid and control the Silk Route. No one, however, wanted to co-operate with the Chinese and face the wrath of the Xiongnu.
First the emperor sent his representative, Zhang Qian (张倩), to the Yuezhi kingdom in Sogdia to try to secure an alliance. The mission failed, but Zhang Qian gathered much information about the lands of West Turkistan and India that lay beyond to the south. He also visited the Pamir and Karakorum mountain regions that were already under Yuezhi control. There was no mention of Buddhism in his reports, although it was already present in most of these areas.
Zhang Qian was sent on another mission to the Wusun peoples in the Ili Valley area where the Yuezhi had been, to the north of Sogdia. He was to try to convince the king to move his people further east to contain and attack the Xiongnu from the rear. The king refused. The Chinese then established diplomatic relations with Parthia in order to obtain horses from the Ferghana Valley. They needed these to create a cavalry to fight against the Xiongnu. When the king of Ferghana would not cooperate with the Chinese, the Han forces attacked in order to secure the horse trade.
By 101 BCE, many of the city states along the northern and southern rims of the Tarim Basin had become Chinese protectorates. Kashgar was especially guarded by China for trade purposes with Sogdia and Bactria. In 98 BCE, Emperor Wu of Han established the first Chinese military garrison at Dunhuang in western Gansu. This later became an important site in the interaction between Chinese and Tibetan Buddhism. Kucha did not come under Chinese control until the mid-first century CE. Khotan, during this period, remained a powerful kingdom, totally independent of China.
Through his military campaigns and securing of Gansu, Wu of Han was able to prevent the Xiongnu from invading China. Subsequent battles between them were contained within the Tarim Basin. The Xiongnu, however, were weakened by internal quarrels, and their empire was split around 58 BCE. The Eastern Xiongnu Kingdom was mostly in Mongolia and under Chinese suzerainty for its early years. The Western Xiongnu state conquered even further west and north of the Tarim. Some scholars assert that these Western Xiongnu reappeared four hundred years later as the Huns of Attila, who ravaged Europe.
The Kushan Dynasty
From their base in Sogdia and Bactria, the Kushans conquered Kashmir, all the Shaka-controlled areas, including Gandhara, as well as some of the easternmost parts of the Parthian Empire. The Shakas were allowed to retain control over their area in Baluchistan as vassals of the Kushan state. Throughout all this period from the second century BCE, both the Shakas and Kushans continued to support Buddhism in these regions. In Kashmir, for instance, the pre-Vaibhashika abhidharma texts and commentaries of the Sarvastivada school were compiled at this time.
The most famous Kushan king was Kanishka I, who ruled from 127 to 150 CE over a huge empire from eastern Iran to the central part of northern India, including Sogdia and Tokharistan. His western capital was at Kapisha, not far from modern-day Kabul. He supported the Sarvastivada school of Hinayana, which was probably the major Buddhist sect throughout his kingdom. Dharmaguptaka and the Lokottaravada branch of Mahasanghika were also still present in certain areas.
Kanishka sent a mission of five hundred monks from Kashmir to Ladakh, establishing the Sarvastivada school there. The popular Ladakhi belief is that Buddhism first came to the area at the time of King Ashoka. Kanishka’s mission is purported to have reached the western parts of Tibet as well. It needs to be investigated whether they had any contact with the Tibetan kingdom of Zhang-zhung found in this area, with its Bon religion. There is no evidence of any cave monasteries having been established in Zhang-zhung by this mission. The Zhang-zhung people generally lived in cave cities.
There were numerous Buddhist cave monasteries at many sites throughout Bactria, Tokharistan and Oddiyana, in modern-day Afghanistan and Tajikistan. It is difficult to know when they were established. But they were flourishing during the time of Kanishka. The example most well-known today was at Bamiyan in the central Hindu Kush mountains. Monks from Parthia later studied in some of these monasteries, particularly in Tokharistan, before traveling on to translate in China.
The Vaibhashika school of Sarvastivada was especially prominent at these cave monasteries of Bactria and Tokharistan. The Tokharian monk Ghoshaka was one of the compilers of the Vaibhashika commentaries accepted at the Fourth Buddhist Council held by Kanishka. Other Tokharians translated Vaibhashika texts into their local language.
King Kanishka was tolerant of Brahmanism, Zoroastrianism and the Greek religions practiced within his domain. His policy was a continuation of the Greco-Bactrian one that had preceded in Gandhara, Oddiyana, Bactria and Sogdia. Reflecting this long ongoing tolerance, one of the most important continuing influences from these southwestern Central Asian areas was on the Buddhist artwork and sculpture. What became known as the Gandhara school was a blend of classical Indian Buddhist and Greek styles. This school of art was found throughout Central Asia.
Kushan Influence on East Turkistan
Although some cultural influence came from Sogdian and Parthian merchants, the main impetus to Buddhism in East Turkistan came from the Kushans. The Chinese were later recipients of the fruits of that contact.
The furthest extent of Han Chinese conquest in Central Asia occurred during the second half of the first century CE, beginning with the reign of Emperor Ming of Han. This is the emperor under whom Buddhism is supposed to have officially first entered China. China’s conquests in East Turkistan, however, were limited to the northern Tarim states, such as Kucha. At this time, Khotan was very strong and ruled the entire southern rim of the Tarim Basin. The Chinese were unable to defeat them.
The influence of the Chinese quickly waned in the Tarim Basin at the beginning of the second century CE. The Khotanese expelled the Chinese from Kashgar and incorporated it into their kingdom.
In about 150 CE, after the passing away of King Kanishka, the Kushans, in turn, conquered and held for a brief period Khotan including Kashgar. The native Khotanese line of rule of the Vijaya Dynasty, however, was never broken. The Sarvastivada school, which had already spread to Khotan from Kashmir in the mid-first century BCE, received a further boost. More monasteries were built. During this period, Buddhism, particularly Sarvastivada, began to flourish as well in Kucha and the states of the northern Tarim Basin. This spread was due to the Kushan influence in Khotan.
Zoroastrian Influences at the Fall of the Kushans
Towards the end of the Kushan Dynasty, in the beginning of the third century CE, Iranian elements came into the Buddhism of its Central Asian areas. Previously, Kushan coins had both Buddhas and Zoroastrian deities on them. Now, in Bactrian cave monasteries such as Kara Tepe in present-day Uzbekistan there were wall paintings of Buddhas with two auras of flames around them. Inscriptions called these figures “Buddha-Mazda.” This was an amalgam of Buddha and Ahura Mazda, the supreme god of Zoroastrianism.
The Kushan Dynasty was overthrown in Central Asia in 224 by the Iranian Sasanian Empire. The Sasanians were strong supporters of Zoroastrianism who tolerated Buddhism. Although not much is known about the Central Asian Buddhism of this period, it is clear that skillful means were employed to make Buddhism accessible to those imbued with the Zoroastrian worldview.
Although the Sasanians destroyed many of the Kushan palaces, they did not interfere with the Buddhist monasteries. In fact, even more monastic facilities were built. The Hinayana Lokottaravada followers, for example, built two colossal Buddha statues at Bamiyan in the central Hindu Kush mountains sometime between the third and early fifth centuries. Lokottaravada asserts Buddhas as superhuman, transcendent beings. To depict this, one of these two statues, at fifty-five meters, is the world’s largest standing Buddha.
The Early Mahayana Period in East Turkistan
It was shortly after the reign of King Kanishka that Mahayana began to appear in North India in the beginning of the second century CE. It spread quickly throughout the Kushan Empire, which at this point included Khotan and Kashgar. Thus, after the Hinayana Sarvastivada tradition had become established in the oasis kingdoms of the southern rim of the Tarim Basin, Mahayana slowly came there as well. Khotan soon became the stronghold of Mahayana in East Turkistan, although in the early centuries it was favored mostly by a minority. Mahayana was also introduced in Kashgar.
Kucha, however, on the northern rim of the Tarim, remained strongly Hinayana Sarvastivada. Although the famous translator Kumarajiva began to introduce Mahayana there at the end of the fourth century, it still remained predominately Hinayana. Kumarajiva had studied Sarvastivada in Kashmir, but then had turned to Mahayana in Kashgar, where it was also a minority faith. It was only at the end of the sixth century that Kucha became a Mahayana land.
The earliest Mahayana sutras that had appeared in India were all translated from Sanskrit and more colloquial Prakrits into Khotanese. This included the Prajñāpāramitā, Sukhāvatīvyūha, Vimalakīrti Nirdeśa and Śūraṅgama Sūtras. It is difficult to know exactly when the earliest translations were made. The texts that have survived are dated from the seventh to the tenth centuries but were undoubtedly antedated by earlier copies. Tantric texts were translated during the tenth century. The Sukhāvatīvyūha Sūtra, with its emphasis on gaining rebirth in the Pure Land of the Buddha of Boundless Light, was readily accessible to those with a Zoroastrian background. Unlike Tibetan translations, Khotanese ones are not literal. Sometimes they are expanded and sometimes condensed from the originals. The aim seems to have been to make the texts as intelligible and readable as possible. Tibetans never took such liberty. Occasionally material was added from the commentarial tradition. But since the translators were expert scholars, the sense was never lost.
Mahayana sutras were also translated from Sanskrit into Kuchean after the end of the sixth century. The Kuchean language is sometimes called Tokharian by Western scholars. It has no relation, however, with Tokharistan.
Furthermore, certain sutras seem to have been compiled in Central Asia itself. Or at least their written form was influenced by the Central Asian context in which they appeared. This is because East Turkistani place names are found in them. For instance, one sutra praises Goshringa mountain, the site of the most famous monastery in Khotan. Another describes emanations of the Buddha spreading forth on rays of light to India, China, Khotan and Kucha.
Early Mahayana in West Turkistan
The Hinayana Mahasanghika school, a forerunner of Mahayana, was present in Oddiyana since the middle of the fourth century BCE. It spread from there to the Hindu Kush area of central Afghanistan, where its Lokottaravada subsect established itself at Bamiyan. Mahasanghika and Lokottaravada may have also made inroads into Bactria and Sogdia, but this is unclear.
Mahayana came to these West Turkistani areas later than it did to East Turkistan. This occurred during the fifth and sixth centuries CE. It apparently came from Kashmir and Gandhara. By the fourth century, the former area of Oddiyana was known by two names. The regions to the west of the Khyber Pass, in modern-day eastern Afghanistan, were known as Nagarahara. East of the Khyber Pass, modern-day northwestern Pakistan and Swat retained the name Oddiyana. Pockets of Mahayana were found in Oddiyana itself and in the Hindu Kush regions west of Nagarahara. Hinayana, in particular Sarvastivada, however, remained the predominant Buddhist tradition of Nagarahara and Bactria.
The Sogdians had followed the Sarvastivada tradition. Many of them turned to Manichaeism during the fourth century. The major language of the Manichaean scriptures was Sogdian. Some also adopted Nestorian Christianity. As the principal merchants of the Silk Route, they seemed to have been open to many foreign religions. They were not only instrumental in the early transmission of Hinayana Buddhism to China but also brought Manichaeism. By 675, Manichaeism was well-established in western China. The Sogdians helped translate both Buddhist and Manichaean texts into Chinese.
Although Mahayana influences from central Afghanistan may have reached the Sogdians in their homeland, the major Mahayana contact came from the Chinese. This was in the Sogdian enclaves of the western Chinese cities at the terminus of the Silk Route. Thus, Buddhist translations into the Sogdian language were made primarily from the Chinese and not the Sanskrit and Prakrit texts. They too were mostly of the major early Mahayana sutras, but also included texts that are no longer extant in Chinese. As with the Khotanese materials, the surviving manuscripts date from the seventh century. Since the Sogdians were mostly merchants resident in China and not expert scholars, their translations contain many errors.
Thus, it would seem that the early Sogdian Buddhists in Sogdia itself maintained their Sarvastivada tradition in the Sanskrit language. This seems to have been the case with the Sarvastivada followers in the other West Turkistani and Afghan lands as well. Central Asian monks translated texts from Sanskrit and Prakrit into Chinese during the early spread of Buddhism into China but seem to have kept the texts in the original in their own lands.
Summary
Since there were so many lands in Central Asia during this early period, and the history is so complex, let us summarize the development of Buddhism in each.
(1) Gandhara was under Seleucid Greco-Iranian rule for only twenty-five years. Then as part of the Mauryan Empire of India, first Theravada, at the time of King Ashoka, and then Sarvastivada spread there. It was conquered by the Greco-Bactrian Kingdom. In the first century BCE, it was taken by the Shakas who were based in Baluchistan, having been driven south by the Yuezhi. It then became part of the Kushan Dynasty. By the sixth century, Mahayana came from India.
(2) Oddiyana received the Mahasanghika tradition during the mid-fourth century BCE. It was also under brief Seleucid rule and then part of the Indian Mauryan Empire. Although King Ashoka sent a Theravada mission, Theravada never became strongly established. Oddiyana passed into Greco-Bactrian, Shaka and then Kushan hands. Sarvastivada entered under Kushan influence. Mahasanghika and its Lokottaravada subsect remained dominant in the Hindu Kush regions to the west. By the sixth century, Mahayana spread to its westernmost and easternmost areas from India. The region in present-day eastern Afghanistan remained Sarvastivadin.
(3) Bactria was under Seleucid Greco-Iranian rule for about ninety years. It then formed the center of the Greco-Bactrian Kingdom, which included Sogdia. Sarvastivada came to Bactria about forty years later when it conquered Gandhara. A monastery had been built in Bactria at the time of the Buddha, but it is uncertain whether there was any lasting influence from that time. Bactria was conquered by the Shakas, who were driven south from Kazakhstan to Sogdia to Bactria by the Yuezhi. It was then taken by the Yuezhi and made part of the Kushan Dynasty. Mahayana hardly spread to Bactria.
(4) Sogdia was independent of the Seleucid Greco-Iranian Empire. It was conquered by the Greco-Bactrian Kingdom and received Sarvastivada when Bactria conquered Gandhara. Sogdia was taken by the Shakas who had been driven south from Kazakhstan by the Yuezhi. It was then conquered by the Yuezhi and formed part of their Kushan Dynasty.
After the fall of the Kushan Dynasty, the Sogdians became mostly Manichaean, incorporating many of their Buddhist concepts. Sogdian merchants became the main transmitters of Manichaeism and Nestorianism in Central Asia and China. They helped translate Sanskrit Buddhist texts into Chinese. They received Mahayana from China, most prominently during the seventh century. They translated Mahayana texts into Sogdian from Chinese.
(5) Kashmir received Theravada Buddhism from King Ashoka. It then became the stronghold of Sarvastivada, which spread from there to Khotan, Gilgit and Tokharistan. It was conquered by the Greco-Bactrian Kingdom. The Yuezhi conquered it as part of their Kushan Dynasty. Sarvastivada then spread from Kashmir to Khotan and Ladakh. Vaibhashika, Sautrantika and Mulasarvastivada all developed in Kashmir. Mahayana came to Kashmir towards the end of the Kushan period.
(6) Parthia was under Seleucid Greco-Iranian rule. It then became the center of the Arsacid Empire that was primarily Zoroastrian. Dharmagupta came to Parthia from western India, the Sindh and Baluchistan. Parthia had trade relations with China, and the Dharmagupta monastic lineage spread from Parthia to China. The Parthians studied Buddhist texts mostly in Sanskrit and often at the cave monasteries of Bactria and Tokharistan. Parthian monks helped translate Sarvastivada and Dharmagupta texts from Sanskrit into Chinese.
(7) Khotan was founded with Gandharan, Chinese and Iranian elements. Sarvastivada came to Khotan from Kashmir during the Greco-Bactrian period. From Khotan, it spread to Kashgar and Kucha. Khotan was conquered by the Kushans, who strengthened Sarvastivada and introduced Mahayana. After the overthrow of the Kushans, Khotan remained independent until it was conquered by the Tibetans in the seventh century. It was a stronghold of Mahayana, and many texts were translated from Sanskrit into Khotanese.
(8) Kashgar was a Chinese protectorate for about two centuries. It was then taken by Khotan, which introduced Sarvastivada there. After eighty years, Kashgar was taken by the Kushans who had conquered Khotan. Mahayana was then introduced, but Kashgar remained primarily Sarvastivada.
(9) Kucha was a Chinese protectorate for about two hundred years. It then became independent. Sarvastivada came from Khotan, particularly during the Kushan period. Although Mahayana was present to a limited extent in Kucha, Sarvastivada dominated. Texts were translated from Sanskrit into Kuchean.
The pattern of the early spread of Buddhism in Central Asia, then, was different from that in Southeast Asia. Early Indian Mahayana went to Cambodia, southern Vietnam, and later to Sri Lanka, northern Myanmar and Indonesia. But except for in Vietnam and Indonesia, it was supplanted in Southeast Asia by Theravada. In Central Asia, on the other hand, the opposite occurred. Except for Bactria, Parthia, eastern Afghanistan and Kucha, Mahayana came to predominate over the earlier Sarvastivada, Mahasanghika and Dharmaguptaka. But in most cases, several forms of Hinayana and Mahayana coexisted in the lands of Central Asia.