The medieval Swahili empire that traded gold from Zimbabwe to China — island ruins, dhow coast, and the Indian Ocean trade wind
Kilwa Kisiwani (Kilwa on the Island) is a UNESCO World Heritage Site since 1981 and the most important medieval city on the East African coast — the 13th–16th century Swahili sultanate that controlled the gold trade from Great Zimbabwe to the Indian Ocean, exporting to Arabia, India, and China through the dhow network that defined the Swahili Coast economy. The island (accessed by 15-minute dhow crossing from Kilwa Masoko on the mainland) contains the ruins of the Great Mosque (one of the finest medieval buildings in sub-Saharan Africa, with 30 vaulted bays and a domed interior built without…
Kilwa Kisiwani was founded by a Shirazi (Persian Gulf) dynasty around 900 CE and reached its peak in the 14th century when it controlled the gold export route from the Zimbabwean plateau (Great Zimbabwe was the source) through the Zambezi valley and down the coast. Ibn Battuta visited in 1331 and called it one of the finest cities in the world. Vasco da Gama arrived in 1498 and the Portuguese seized the sultanate in 1505, ending Kilwa's commercial dominance. The ruins have been largely unexcavated.