^208:1 The Sui dynasty ruled in China from 589-619 A.D. They came to power at the close of a long period of division, the Empire having been previously divided into many small kingdoms, with Chinese rulers south of the Yangtse, and Tartar or Turkish chieftains in the northern districts. Such were the Wei (Tartars), the Hsia (Hun), the Northern Yen (Tartar), the Western Liang (Turkish), and the Western Tsin (Thibetan). These smaller kingdoms are of great importance in the History of Buddhism, for it was in them rather than in China proper that Buddhism flourished before the Tang period. The Sui family had but two Sovereigns--Wenti (589-606), who united China and carried the Chinese name far among the Turks in the North and East; and Yangti (605-617), a man of violent temper, prone to debauchery and extravagance, who brought the Empire to the verge of ruin. He was overthrown by Li-yuan of the Tang family, who ascended the throne in A.D. 618, as Kaotsu.
^209:1 It will be well to remember that under the earlier Tang Emperors, Chinese Viceroyalties extended as far as the frontiers of the Persian Empire, and that even monarchs like Siladitya Harsha of Kanauj acknowledged Chinese influence. It must also be remembered that Kaotsu suppressed Buddhist monasteries, sending 100,000 bonzes and nuns about their business, being stimulated thereto by petitions from Chinese literati. Buddhism had many enemies: e.g. in India, where Harsha's predecessor had likewise (in 601) dissolved the Buddhist monasteries, and even uprooted the famous Bodhi-tree. V. A. Smith, "Early History of India."
^209:2 It will be well to keep a few dates in mind. The first Persian Temple (whether Zoroastrian or Manichaean is not quite clear) was erected at Singanfu, in 621, three years after Kaotsu's accession. The Persian Empire, under Chosroes II., was at the time at war with Rome (or rather Constantinople), a Persian army was on the Bosphorus. This war was a great strain on the Persian dominions, and there were other causes for anxiety. Mahomet, born 570, had announced himself as a prophet in 610, and the Hejira, from which all Mahometans date their years, took place in 622. Siladitya Harsha, whose Indian Empire extended over the whole basin of the Ganges, and who began as a warlike monarch, came to the throne A.D. 606. He, too, received an Embassy from the Persians, which he housed in a monastery near Multan, and massacred after entertaining them liberally. This must have been before his conversion to Buddhism, which seems to have been about 645 (V. A. Smith," Early History of India"). The Persians were evidently looking everywhere for helpful allies.