History of Zanzibar of Tanzania; it is celebrated on 12 January each year. On 26 April 1964, the mainland colony of Tanganyika united with Zanzibar to form the United Republic of Tanganyika and Zanzibar; this lengthy name was compressed into a portmanteau, the United Republic of Tanzania, on 29 October 1964. After unification, local affairs were controlled by President Abeid Amani Karume, while foreign affairs were handled by the United Republic in Dar es Salaam. Zanzibar remains a semi-autonomous region of Tanzania. The autonomous status of Zanzibar is viewed as comparable to Hong Kong as suggested by some scholars, and being recognized as
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