History of South Georgia and the South Sandwich Islands in the Arctic claiming Jan Mayen and Sverdrup Islands, but also in Antarctica. Norway claimed Bouvet Island and looked further south, formally inquiring with Foreign Office about the international status of the area between 45° and 65° south latitude and 35° and 80° west longitude. Following a second such diplomatic démarche by the Norwegian Government dated 4 March 1907, Britain replied that the areas were British based on discoveries made in the first half of the 19th century, and issued the 1908 Letters Patent incorporating the British Falkland Islands Dependencies with a permanent local administration in Grytviken established in 1909.
Navassa Island an observation post for the duration of World War II. The island has been uninhabited since then. Fishermen, mainly from Haiti, fish the waters around Navassa. A scientific expedition from Harvard University studied the land and marine life of the island in 1930. After World War II amateur radio operators occasionally visited to operate from the territory, which is accorded "entity" (country) status by the American Radio Relay League. The callsign prefix is KP1. From 1903 to 1917, Navassa was a dependency of the U.S. Guantanamo Bay Naval Base, and from 1917 to 1996 it was under United States Coast