Before revision: East African city-states City-states along the Swahili coast, such as Zanzibar, Kilwa, and Mombasa, thrived on the bustling Indian Ocean trade in gold, ivory, and slaves, in exchange for textiles, spices, and ceramics.
After revision: Ruins of Songo MnaraEast African city-states City-states along the Swahili coast, such as Zanzibar, Kilwa, and Mombasa, thrived on the bustling Indian Ocean trade in gold, ivory, and slaves, in exchange for textiles, spices, and ceramics.