Zanzibar is part of the East African republic of Tanzania. It consists of the Zanzibar Islands in the Indian Ocean, 25-50km (15-30mi) off the coast off the mainland.

There are several small islands and two large ones: Unguja (the main island, informally referred to as “Zanzibar Island”), and Pemba Island. Zanzibar was once a separate state with a long trading history within the Arab world; it united with Tanganyika to [...]