Kilwa, the first European overseas’ fortification built in the East

The Portuguese Fort of Kilwa, constructed in just 17 days (23 July – 9 August 1505) during Francisco de Almeida's inaugural voyage as the first Viceroy of India, stands as the first European overseas fortification built with stone and lime in the East. This fort, part of the UNESCO World Heritage Site ruins of Kilwa Kisiwani and Songo Mnara (Tanzania), exemplifies early military architecture transitioning to pyroballistic design, featuring a square shape with two round bastions—potentially inspired by Leonardo da Vinci's models. Despite its short 7-year Portuguese occupation, the fort remained operational until the mid-19th century, retaining its original compositional principles while adapting Swahili cultural elements. The study highlights Kilwa's significance as a foundational structure in colonial expansion strategies during the Manueline period (1495–1521), with parallels observed in other African and Indian forts.

Campos, J. (2024). Kilwa, the first European overseas’ fortification built in the East. Defensive Architecture of the Mediterranean Vol. XVI (FORTMED2024). https://doi.org/10.4995/fortmed2024.2024.17944