🇹🇿 Tanzania · Ancient city
Kilwa Kisiwani
Swahili Coast Medieval (9th–19th c; Sultanate peak 1100–1500) · Swahili (Bantu-Arab-Persian) / Shirazi dynasty / Portuguese interlude
Swahili stone-town entrepôt (9th–19th c) controlling Indian Ocean gold trade from Sofala and Great Zimbabwe: Gereza fortress (Portuguese 1505), Great Mosque (oldest sub-Saharan mosque 1131–1770…