From times immmmemorial the people of India, since the age of Neolithic people, had good relation with other parts of the world and they emigrated in large numbers , both by land and sea , and settled in Indo-China and the Indian Archipelago. When a high degree of civilisation flourished in Indus valley, there was undoubtedly a familiar relations with the countries of Western and central Asia.both the races Aryans and Dravidians had come from outside India and settled permanently had trade relations with Babylonia, Syria nad Egypt.Towards the later half of the first century, a greek sailor, living in Egypt, undertook avoyage to India along the coast of the Red sea and the Arabian sea , and recorded a minute account of his experiences in abook called The periplus of the Erythrean Sea . It is further proved by the Indian missions sent Roman emperors . The trade to Roman and other western countries was carried through the important port of Alexandria where goods carried by the sea upto the canals of the Nile through Mediterian coast which ran through Persia, and along the shores of the Caspian, to Syria and Asia minor.During Ashoka religious expeditions took place throughout Central asia, and S-E Asia. A map with the areas of expansion is given above.
