350–290 BC), a Greek ambassador of the Seleucids to the court of Chandragupta (ruled 322-298 BC), founder of the Mauryan Empire.[2] Based on his life in India Megasthenes composed a four-volume Indica, fragments of which still exist, and which influenced the classical geographers Arrian, Diodor and Strabo.[2] Megasthenes reported that the caste system dominated an essentially illiterate India.[3][4]