Swahili Two-Masted Dhow

Timeline

1. c. 800–950Western Indian Ocean · East African coastShipbuilding techniques on the East African coast absorbed Arabian and South Asian lateen sail technology, forming wooden sailing vessel prototypes suited to coastal and ocean monsoon voyaging, laying the foundation for the standardization of the Swahili dhow.
2. c. 1001–1200Mombasa · Swahili CoastWith the rise of Swahili city-states in the early 11th century, the two-masted lateen dhow became the standard merchant vessel, its hull built of local hardwood and capable of carrying dozens of tons of cargo on round trips along monsoon routes.
3. 1200–1500Kilwa to Gujarat route · South AsiaFrom the 13th to 15th centuries, Swahili dhows dominated shipping in the western Indian Ocean, plying East African and Arabian and Indian ports with the monsoons each year, transporting gold, ivory, spices, and ceramics.
4. 1800Lamu · KenyaSteamships and colonial shipping systems squeezed traditional dhow commercial transport, but places like Lamu still preserve shipbuilding craftsmanship and coastal sailing traditions, becoming living cultural heritage.