Archaeologists utilizing high-definition LiDAR mapping have identified a sprawling urban complex hidden beneath the canopy of the Selous Game Reserve in Tanzania. The site, named Ziwani-Kuu, dates to approximately 500 CE and challenges the traditional view of early Swahili civilization as primarily coastal and mercantile. The mapping reveals a highly organized city with over 200 distinct iron-smelting blast furnaces and a central palatial complex built from coral stone.
Initial ground surveys have uncovered high-purity steel slag and intricate casting molds for agricultural tools and weaponry, suggesting that this city was a major industrial powerhouse that fueled trade across the Indian Ocean. The discovery of inland coral stone architecture indicates a much deeper cultural and architectural link between the coast and the deep interior than previously recorded in African history.