Zanzibar, Swahili Unguja, island in the [Indian Ocean](https://www.britannica.com/place/Indian-Ocean), lying 22 miles (35 km) off the coast of east-central [Africa](https://www.britannica.com/place/Africa). In 1964 [Zanzibar](https://www.britannica.com/place/Zanzibar-Tanzania), together with [P...
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