Indian expeditions to the East probably commenced, if not in the reign of Asoka, at least before our era. The Chinese Annals[4] state that Indian Embassies reached China by sea about 50 B.C. and the Questions of Milinda allude to trade by this route: the Ramayana mentions Java and an inscription seems to testify that a Hindu king was reigning in Champa (Annam) about 150 A.D. These dates are not so precise as one could wish, but if there was a Hindu kingdom in that distant region in the second century it was probably preceded by settlements in nearer halting places, such as the Isthmus of Kra[5] or Java, at a considerably anterior date, although the inscriptions discovered there are not earlier than the fifth century A.D.
Java seems to have left some trace in Indian tradition, for instance the proverb that those who go to Java do not come back, and it may have been an early distributing centre for men and merchandize in those seas. But Ligor probably marks a still earlier halting place. It is on the same coast as the Mon kingdom of Thaton, which had connection with Conjevaram by sea and was a centre of Pali Buddhism. At any rate there was a movement of conquest and colonization in these regions which brought with it Hinduism and Mahayanism, and established Hindu kingdoms in Java, Camboja, Champa and Borneo, and another movement of Hinayanist propaganda, apparently earlier, but of which we know less.[6] Though these expeditions both secular and religious probably took ship on the east coast of India, e.g. at Masulipatam or the Seven Pagodas, yet their original starting point may have been in the west, such as the district of Badami or even Gujarat, for there were trade routes across the Indian Peninsula at an early date.[7]
It is curious that the early history of Burma should be so obscure and in order not to repeat details and hypotheses I refer the reader to the chapter dealing specially with this country. From an early epoch Upper Burma had connection with China and Bengal by land and Lower Burma with Orissa and Conjevaram by sea. We know too that Pali Buddhism existed there in the sixth century, that it gained greatly in power in the reign of Anawrata (c. 1060) and that in subsequent centuries there was a close ecclesiastical connection with Ceylon.
Siam as a kingdom is relatively modern but like Burma it has been subject to several influences. The Siamese probably brought some form of Buddhism with them when they descended from the north to their present territories. From the Cambojans, their neighbours and at one time their suzerains, they must have acquired some Hinduism and Mahayanism, but they ended by adopting Hinayanism. The source was probably Pegu but learned men from Ligor were also welcomed and the ecclesiastical pre-eminence of Ceylon was accepted.
We thus see how Indian influence conquered Further India and the Malay Archipelago and we must now trace its flow across Central Asia to China and Japan, as well as the separate and later stream which irrigated Tibet and Mongolia.
Tradition as mentioned ascribes to Asoka some connection with Khotan and it is probable that by the beginning of our era the lands of the Oxus and Tarim had become Buddhist and acquired a mixed civilization in which the Indian factor was large. As usual it is difficult to give precise dates, but Buddhism probably reached China by land a little before rather than after our era and the prevalence of Gandharan art in the cities of the Tarim basin makes it likely that their efflorescence was not far removed in time from the Gandharan epoch of India. The discovery near Khotan of official documents written in Prakrit makes colonization as well as religious missions probable. Further, although the movements of Central Asian tribes commonly took the form of invading India, yet the current of culture was, on the whole, in the opposite direction. The Kushans and others brought with them a certain amount of Zoroastrian theology and Hellenistic art, but the compound resulting from the mixture of these elements with Buddhism was re-exported to the north and to China.
I shall discuss below the grounds for believing that Buddhism was known in China before A.D. 62, the date when the Emperor Ming Ti is said to have despatched a mission to enquire about it. For some time many of its chief luminaries were immigrants from Central Asia and it made its most rapid progress in that disturbed period of the third and fourth centuries when North China was split up into contending Tartar states which both in race and politics were closely connected with Central Asia. Communication with India by land became frequent and there was also communication viâ the Malay Archipelago, especially after the fifth century, when a double stream of Buddhist teachers began to pour into China by sea as well as by land. A third tributary joined them later when Khubilai, the Mongol conqueror of China, made Lamaism, or Tibetan Buddhism, the state religion.
Tibetan Buddhism is a form of late Indian Mahayanism with a considerable admixture of Hinduism, exported from Bengal to Tibet and there modified not so much in doctrine as by the creation of a powerful hierarchy, curiously analogous to the Roman Church. It is unknown in southern China and not much favoured by the educated classes in the north, but the Lamaist priesthood enjoys great authority in Tibet and Mongolia, and both the Ming and Ch́ing dynasties did their best to conciliate it for political reasons. Lamaism has borrowed little from China and must be regarded as an invasion into northern Asia and even Europe[8] of late Indian religion and art, somewhat modified by the strong idiosyncrasy of the Tibetan people. This northern movement was started by the desire of imitation, not of conquest. At the beginning of the seventh century the King of Tibet, who had dealings with both India and China, sent a mission to the former to enquire about Buddhism and in the eighth and eleventh centuries eminent doctors were summoned from India to establish the faith and then to restore it after a temporary eclipse.
In Korea, Annam, and especially in Japan, Buddhism has been a great ethical, religious and artistic force and in this sense those countries owe much to India. Yet there was little direct communication and what they received came to them almost entirely through China. The ancient Champa was a Hindu kingdom analogous to Camboja, but modern Annam represents not a continuation of this civilization but a later descent of Chinese culture from the north. Japan was in close touch with the Chinese just at the period when Buddhism was fermenting their whole intellectual life and Japanese thought and art grew up in the glow of this new inspiration, which was more intense than in China because there was no native antagonist of the same strength as Confucianism.
In the following chapters I propose to discuss the history of Indian influence in the various countries of Eastern Asia, taking Ceylon first, followed by Burma and Siam. Whatever may have been the origin of Buddhism in these two latter they have had for many centuries a close ecclesiastical connection with Ceylon. Pali Buddhism prevails in all, as well as in modern Camboja.