"Internal trade flourished; every roadside was—and is—a bazaar. The foreign trade of India is as old as her history;22 objects found in Sumeria and Egypt indicate a traffic between these countries and India as far back as 3000 B.C.23 Commerce between India and Babylon by the Persian Gulf flourished from 700 to 480 B.C.; and perhaps the “ivory, apes and peacocks” of Solomon came by the same route from the same source. India’s ships sailed the sea to Burma and China in Chandragupta’s days; and Greek merchants, called Yavana (Ionians) by the Hindus, thronged the markets of Dravidian India in the centuries before and after the birth of Christ.24 Rome, in her epicurean days, depended upon India for spices, perfumes and unguents, and paid great prices for Indian silks, brocades, muslins and cloth of gold; Pliny condemned the extravagance which sent $5,000,000 yearly from Rome to India for such luxuries. Indian cheetahs, tigers and elephants assisted in the gladiatorial games and sacrificial rites of the Colosseum.25 The Parthian wars were fought by Rome largely to keep open the trade route to India. In the seventh century the Arabs captured Persia and Egypt, and thereafter trade between Europe and Asia passed through Moslem hands; hence the Crusades, and Columbus."
January 1, 1970
https://en.wikiquote.org/wiki/Economy_of_India