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
Sultanate of Zanzibar ethnic groups were becoming mixed and the distinctions between them had blurred; according to one historian, an important reason for the general support for Sultan Jamshid was his family's ethnic diversity. However, the island's Arab inhabitants, as the major landowners, were generally wealthier than the natives; the major political parties were organised largely along ethnic lines, with Arabs dominating the Zanzibar Nationalist Party (ZNP) and natives the Afro-Shirazi Party (ASP). Sultanate of Zanzibar The Sultanate of Zanzibar (, ), also known as the Zanzibar Sultanate, comprised the territories over which the Sultan of Zanzibar was the sovereign. Those territories varied