Anglo-Zanzibar War sovereign state and the start of a period of heavy British influence. Zanzibar was an island country in the Indian Ocean, off the coast of Tanganyika; today it forms part of Tanzania. The main island, Unguja (or Zanzibar Island), had been under the nominal control of the Sultans of Oman since 1698 when they expelled the Portuguese settlers who had claimed it in 1499. Sultan Majid bin Said declared the island independent of Oman in 1858, which was recognised by Great Britain, and split the sultanate from that of Oman. Barghash bin Said, the second sultan and Khalid's father, had
Sultanate of Zanzibar 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 over time, and at one point included all of what is now Kenya as well as the Zanzibar Archipelago of the Swahili Coast. Later, the kingdom's realm included only a ten mile wide coastal strip of Kenya and Zanzibar. Under an agreement concluded on 8 October 1963, the Sultan relinquished sovereignty over his remaining territory in Kenya. On 12 January 1964, Sultan Jamshid bin Abdullah was deposed and lost sovereignty