Flourishing of Indian Ocean Trade on the Swahili Coast in the 11th Century

Timeline

1. 1060–1065Kilwa (Kilwa Kisiwani) · East AfricaPorts such as Kilwa used the monsoon cycle to link up with Indian Ocean routes, establishing tariffs, warehouses, and mosques, and became key nodes connecting the gold-producing regions of the Zambezi River basin with overseas markets.
2. 1065–1069Mogadishu (Muqdisho) · Horn of AfricaNorthern port cities and southern Kilwa formed a complementary network; Swahili, a fusion of Bantu and Arabic, became the common language of trade; imported Chinese Song porcelain and other goods appear in large quantities in archaeological strata, indicating rising trade volumes.