This book offers an interpretation of the two fragmentary texts of the P. Vindobonensis G 40822, now widely referred to as the Muziris papyrus. Without these two texts, there would be no knowledge of the Indo-Roman trade practices. The book also compares and contrasts the texts of the Muziris papyrus with other documents pertinent to Indo-Mediterranean (or Indo-European) trade in ancient, medieval, and early modern times. These other documents reveal the commercial and political geography of ancient South India; the sailing schedule and the size of the ships plying the South India sea route; the commodities exchanged in the South Indian emporia; and the taxes imposed on the Indian commodities en route from the Red Sea to the Mediterranean. When viewed against the twin backdrops of ancient sources on South Indian trade and of medieval and early modern documents on pepper commerce, the two texts become foundational resources for the history of commercial relationships between South India and the West.