Sultanate of Zanzibar fled into exile, and the Sultanate was replaced by the People's Republic of Zanzibar and Pemba. In April 1964, this short-lived communist republic was united with Tanganyika to form the United Republic of Tanganyika and Zanzibar, which became known as Tanzania six months later. By 1964, the country was a constitutional monarchy ruled by Sultan Jamshid bin Abdullah. Zanzibar had a population of around 230,000 natives, some of whom claimed Persian ancestry and were known locally as Shirazis. It also contained significant minorities in the 50,000 Arabs and 20,000 South Asians who were prominent in business and trade. The various
History of Zanzibar was characterized by fratricidal quarrels as it was common for brother to murder brother, and this was typical of the Arab aristocracy, where it was acceptable for family members to murder one another to gain land, wealth, titles and slaves. Visitors to Zanzibar often mentioned the "shocking brutality" which the Arab masters treated their African slaves, who were so cowed into submission that there was never a slave revolt attempted on Zanzibar. The cruelty which the Arab masters treated their black slaves left behind a legacy of hate, which exploded in the revolution of 1964. The Sultan of Zanzibar controlled