Hippalos and the Monsoon: How a Greek Sailor Opened the Indian Ocean

Trade Routes That Changed Human History Forever — Fexingo History · Jul 4, 2026 · 6m · transcript

This episode zooms in on one of the most transformative maritime discoveries of antiquity: the monsoon winds of the Indian Ocean, and the shadowy figure credited with their exploitation, Hippalos. We trace how Hellenistic and Roman navigators, building on earlier Arabian and Indian knowledge, learned to ride the seasonal reversal of winds directly across open water, slashing travel times from Arabia to India from months to weeks. We examine the Periplus of the Erythraean Sea, the first-century shipping manual that describes ports like Muziris and Berenike, the cargoes of pepper, pearls, and…