Zanzibar by the People's Republic of Zanzibar and Pemba, a socialist government led by the Afro-Shirazi Party (ASP). Over 20,000 people were killed and refugees, especially Arabs and Indians, escaped the island as a consequence of the revolution. In April 1964, the republic merged with mainland Tanganyika. This United Republic of Tanganyika and Zanzibar was soon renamed, blending the two names, as the United Republic of Tanzania, within which Zanzibar remains a semi-autonomous region. The 2002 census is the most recent census for which results have been reported. The total population of Zanzibar was 984,625 – with an annual growth rate
History of Zanzibar Africans died each year before ever reaching the island.) Tippu Tip was the most notorious slaver, under several sultans, and also a trader, plantation owner and governor. Zanzibar's spices attracted ships from as far away as the United States, which established a consulate in 1837. The United Kingdom's early interest in Zanzibar was motivated by both commerce and the determination to end the slave trade. In 1822, the British signed the first of a series of treaties with Sultan Said to curb this trade, but not until 1876 was the sale of slaves finally prohibited. Under strong British pressure, the