Islam in Zanzibar to fight for the secession of Zanzibar from the Union of the United Republic of Tanzania. Islam in Zanzibar Islam is the most prominent religion on the island of Zanzibar. According to the CIA Factbook, more than 99% in the island are Muslim. The vast majority of Muslims in Zanzibar are Sunni of Shafi'i school of jurisprudence with minority Ibadi, Ismaili and Twelver Shia. Islam came to Zanzibar in the 8th century. There is also a presence of Ahmadi Muslims in Zanzibar. According to one source, "Islam in Zanzibar inspired anti-colonialism, political movements and nationalistic struggle for independence." Other Muslim
Sultanate of Zanzibar over the last of his dominions, Zanzibar. In 1698, Zanzibar became part of the overseas holdings of Oman after Saif bin Sultan, the Imam of Oman, defeated the Portuguese in Mombasa, in what is now Kenya. In 1832 or 1840, Omani ruler Said bin Sultan moved his court from Muscat to Stone Town on the island of Unguja (that is, Zanzibar Island). He established a ruling Arab elite and encouraged the development of clove plantations, using the island's slave labour. Zanzibar's commerce fell increasingly into the hands of traders from the Indian subcontinent, whom Said encouraged to settle on the