Saint Helena & Dependencies (U.K.)
This volcanic island and a British overseas territory in the South Atlantic Ocean consists of both the island of Saint Helena, and also the dependencies of Ascension Island and Tristan da Cunha. First discovered as an uninhabited island by the Portuguese in 1502, Britain's second oldest remaining colony (after Bermuda) is one of the most isolated islands in the world and was for several centuries of vital strategic importance to ships sailing to Europe from Asia and South Africa. For several centuries, the British used the island as a place of exile, most notably for Napoleon Bonaparte, Dinuzulu kaCetshwayo and over 5,000 Boer prisoners.