Kilwa Sultanate in the 1490s: Trade Shifts and Portuguese Pressure

Timeline

1. 1490–1495Kilwa Kisiwani · Swahili CoastAfter the mid-15th century, Kilwa's control over East African coastal city-states declined; in the 1490s the sultanate faced internal succession disputes and challenges from coastal rivals such as Mombasa and Malindi, relatively weakening its position as an Indian Ocean trade relay station.
2. 1490–1497Swahili Coast · Indian OceanArab-Persian-Indian merchant networks still dominated the East African gold, ivory, slave, and spice trade, and Kilwa relied on tariffs and transshipment to maintain prosperity. In the 1490s European searches for routes to the East intensified, leaving coastal city-states in an uncertain position between the old order and the approaching Atlantic powers.
3. 1498–1499East African coast (Mozambique–Malindi) · Swahili CoastIn 1498 Vasco da Gama rounded the Cape of Good Hope and reached East Africa, obtaining a pilot at Malindi and continuing on to India. Portugal subsequently penetrated the Swahili Coast by force and tariff competition, and the trade monopolies of Muslim city-states such as Kilwa further unraveled in the early 16th century.