History
Traders from Arabia, Persia and India visited these islands for many centuries, and a Swahili town flourished at Unguja Ukuu in the first millennium. The mosque at Kizimkazi carries an inscription dated 1107, one of the oldest in East Africa, and ruins on Pemba at Ras Mkumbuu and Pujini recall the medieval trading towns. The Portuguese held sway in the 16th century until Omani Arabs drove them out.
In the 19th century Sultan Seyyid Said moved his court from Muscat to Zanzibar, and the island became the capital of an Omani sultanate and the hub of East Africa's trade. Clove plantations worked by enslaved people spread over Unguja and Pemba, and Stone Town's market sold captives brought from the mainland until Britain pressed the sultan to close it in 1873. Zanzibar became a British protectorate in 1890, and in 1896 a British bombardment ended the Anglo-Zanzibar War in well under an hour — often called the shortest war on record.
The islands became independent in December 1963 under the sultan, but on 12 January 1964 a revolution overthrew him; many Arabs and South Asians were killed, with estimates of the dead from several hundred to 20,000, and the Afro-Shirazi Party under Abeid Karume took power. In April 1964 Zanzibar united with Tanganyika to form Tanzania, keeping its own president, government and House of Representatives. Karume was assassinated in 1972. Multiparty elections since 1995 have been bitterly contested, and protests in 2001 were met with deadly force. A power-sharing government was agreed in 2010 and later restored, but the balance between the islands and the union remains a live political question.
