Gilbert and Ellice Islands colony caused the Polynesians of the Ellice Islands to vote for separation from the Micronesians of the Gilbert Islands (later Kiribati). The following year, the Ellice Islands became the separate British colony of Tuvalu. In 1947 Tarawa, in the Gilbert Islands, was made the administrative capital. This development included establishing The King George V Secondary School for boys and the Elaine Bernacchi Secondary School for girls. A Colony Conference was organised at Marakei in 1956, which was attended by officials and representatives from each island in the Gilbert and Ellice Islands Colony, conferences were held every two years until 1962.
Geology of the Pacific Ocean Plate in the north, the Cocos Plate off today's Central America, and the Nazca and Phoenix Plates in the southern Pacific. Charles Darwin had proposed a theory of the slow subsidence of the ocean floor based on his studies of Pacific oceanic islands, seamounts (underwater volcanoes) and guyots (flat-topped seamounts). His observations have been verified and expanded in the development of plate tectonic theory. The tectonic plates continue to move today. The slowest ridge spreading rate is across the Gakkel Ridge in the Arctic Ocean which separates at less than 2.5 cm/yr while the fastest, across the East Pacific Rise