The Great Mosque of Kilwa Kisiwani, one of the many mosques built by the Persian founders of the Kilwa Sultanate.
The Kilwa Sultanate was a medieval sultanate, centered at Kilwa in modern-day Tanzania. At its height, its authority stretched over the entire length of the Swahili Coast, including Kenya. It was founded in the 10th century by Ali ibn al-Hassan Shirazi, a Persian Prince of Shiraz.[28] The Persian rulers would go on to build elaborate coral mosques and introduced copper coinage.