Kilwa, the abandoned East African city, once controlled the medieval gold trade


https://www.nationalgeographic.com/history/magazine/2020/07-08/abandoned-east-african-city-kilwa-controlled-medieval-gold-trade/?cmpid=org=ngp::mc=crm-email::src=ngp::cmp=editorial::add=SpecialEdition_Escape_20201216&rid=5DAE86AE0897F2B2819B70CBE95CD107