Flag of Zanzibar yellow cloves was added to the flag. On 12 January 1964, John Okello overthrew the Sultan of Zanzibar and adopted a black-yellow-blue tricolour as the flag of the People's Republic of Zanzibar and Pemba. On 29 January, the country's flag was changed to a blue-black-green tricolour with a thin white stripe at the hoist. This design, which was based on the flag of the Afro-Shirazi Party, was the longest-lived of the post-independence flags and eventually formed the basis for the current flag. On 26 April 1964, Zanzibar united with Tanganyika to form the new country of Tanzania and Zanzibar's old
Wildlife of Zanzibar diving and snorkelling sites. The Menai Marine Park ecosystem is a protected marine conservation area which covers . A marine reserve management plan has been developed with participation of the local communities. Tumbatu Island is part of the north-west coast of Zanzibar. This tiny island was once the capital of Zanzibar during the reign of the Sultan of Shiraz. The proud people of the island trace their ancestry to the Shiraz rulers of Persia who came to the island in the 10th century. The island is shaped like a long, thin dagger. Vegetation on the island consists of very large