Zanzibar
Zanzibar (; ; ) is a semi-autonomous region of Tanzania. It is composed of the Zanzibar Archipelago in the Indian Ocean, off the coast of the mainland, and consists of many small islands and two large ones: Unguja (the main island, referred to informally as Zanzibar) and Pemba Island. The capital is Zanzibar City, located on the island of Unguja. Its historic centre is Stone Town, which is a World Heritage Site.
History of slavery in the Muslim world
On the coast of the Indian Ocean too, slave-trading posts were set up by Muslim Arabs. The archipelago of Zanzibar, along the coast of present-day Tanzania, is undoubtedly the most notorious example of these trading colonies. Southeast Africa and the Indian Ocean continued as an important region for the Oriental slave trade up until the 19th century. Livingstone and Stanley were then the first Europeans to penetrate to the interior of the Congo basin and to discover the scale of slavery there. The Arab Tippu Tib extended his influence and made many people slaves. After Europeans had settled in the Gulf of Guinea, the trans-Saharan slave trade became less important. In Zanzibar, slavery was abolished late, in 1897, under Sultan Hamoud bin Mohammed. The rest of Africa had no direct contact with Muslim slave-traders.