Zanzibar Revolution with Tanganyika to form the new nation of Tanzania, an act judged by contemporary media to be an attempt to prevent communist subversion of Zanzibar. The revolution ended 200 years of Arab dominance in Zanzibar, and is commemorated on the island each year with anniversary celebrations and a public holiday. The Zanzibar Archipelago, now part of the Southeast African republic of Tanzania, is a group of islands lying in the Indian Ocean off the coast of Tanganyika. It comprises the main southern island of Unguja (also known as Zanzibar), the smaller northern island of Pemba, and numerous surrounding islets. With
History of Zanzibar place to this day. The third pillar of the economy was slaves, which gave Zanzibar an important place in the Arab slave trade, the Indian Ocean equivalent of the better-known Triangular Trade. The Omani Sultan of Zanzibar controlled a substantial portion of the African Great Lakes coast, known as Zanj, as well as extensive inland trading routes. Sometimes gradually, sometimes by fits and starts, control of Zanzibar came into the hands of the British Empire. In 1890, Zanzibar became a British protectorate. The death of one sultan and the succession of another of whom the British did not approve later