Swahili Coast Trade

Timeline

1. 1551–1555Malindi · Swahili CoastAfter the Portuguese seized Kilwa, Malindi, and other ports in 1500, the Estado da Índia headquartered in Goa implemented a pass and tariff system on the East African coast in the early 1550s. Allied ports such as Malindi provided fresh water, supplies, and guides, with ivory and gold transshipped to India and Europe; Mombasa, having resisted repeatedly, suffered military strikes and became a key target of Portuguese surveillance.
2. 1555–1558Mombasa · Swahili CoastIn the mid-to-late 1550s, the Mombasa Sultanate clashed repeatedly with the Portuguese over trade taxes, slave exports, and control of the port. Portuguese fleets bombarded or blockaded Mombasa several times and backed pro-Portuguese chiefs, but failed to hold it long-term. Local Muslim merchants maintained ties with Arab, Persian, and Indian Gujarati networks, challenging the Portuguese monopoly.
3. 1558–1560Kilwa · Swahili CoastBy 1560, Swahili Coast trade remained an important source of revenue for the Portuguese Indian Ocean empire, but Ottoman and Gujarati merchants increasingly competed at the southern mouth of the Red Sea and in the Arabian Sea. The Mombasa–Portuguese tensions accumulated during the 1550s would erupt fully in the large-scale Portuguese siege of Mombasa in 1569; this entry covers the trade pattern and brewing conflicts within the [1551,1560] window.