Zanzibar workers general strike in Zanzibar City, Tanzania, 1948
Zanzibar, a former colony of Great Britain, is an island off the coast of Tanzania, located in East Africa. Under British rule the population of Zanzibar was divided between small but influential groups of Arabs, Indians, and Europeans and the two larger, primary groups on the island: those Africans born on Zanzibar itself and those born on the mainland of Tanzania, who later immigrated.