Ports rose as power shifted
Portuguese intervention
Around 1500, Portuguese fleets entered an established commercial world. Coastal rulers responded differently: some sought alliances against rivals, while others resisted. In 1505, Portuguese soldiers intervened at Kilwa and installed a ruler favorable to their interests. Forts and military pressure were tools for controlling profitable trade. The consequences varied by place; Kilwa declined, but the coast’s commerce and communities did not simply stop when Portuguese ships arrived. [40] [41]
Omani power and local competition
Fort Jesus, built at Mombasa in the 1590s, became a focal point of struggle. An Omani siege from 1696 to 1698 ended Portuguese control there, although the Portuguese briefly returned in 1728–1729. Omani influence did not erase local rivalry. Mombasa’s Mazrui rulers became a substantial regional force during the eighteenth century, showing that claims made from across the sea could coexist with powerful authorities based on the African coast. [45] [46]
Zanzibar and colonial pressure
Said bin Sultan transferred his capital to Zanzibar in 1840, strengthening its role in nineteenth-century commerce. British pressure brought a ban on the slave trade in 1873, but slavery itself persisted. Zanzibar became a British protectorate in 1890, and a further abolition decree followed in 1897. These events changed sovereignty and labor relations at different speeds. They should not be treated as one simultaneous end to either slavery or Swahili cultural life. [48] [49]