UNESCO General History of Africa Volume III Africa from the Seventh to the Eleventh Century. Before European Hegemony: the World System AD 1250-1350. By Janet L. Abu-Lughod. Oxford University ...

where the Cauvery flows into the Bay of Bengal and which has elaborate mentions in the Sangam literature and Periplus of the Erythraean Sea. (A Periplus is a manuscript that lists the ports and ...