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 . The Pacific Ocean developed from the Panthalassa, a vast global ocean, following the breakup of the supercontinent Pangaea in the Mesozoic Era, gradually forming Gondwana and Laurasia, which in turn divided. There is no firm date for when the changeover occurred, as the replacement of the sea bed is a continuous process, though reconstruction maps often change the name from Panthalassic to Pacific around the time the Atlantic Ocean began to open. The Panthalassic Ocean first opened around 750 million years ago at the breakup of Rodinia, but the oldest Pacific Ocean floor is only around 180 Ma old.