Postage stamps and postal history of Tuvalu Postage stamps and postal history of Tuvalu Tuvalu is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. It comprises four reef islands and five true atolls. Its population of 10,472 makes it the third-least populous sovereign state in the world. In terms of physical land size, at just Tuvalu is the fourth smallest country in the world. Tuvalu was formerly the Ellice Islands, part of the Gilbert and Ellice Islands which split into Kiribati and Tuvalu upon gaining independence from the United Kingdom in 1978
Endemism in the Hawaiian Islands was critical to the formulation of his theory of evolution is far exceeded in the more isolated Hawaiian Islands. The relatively short time that the existing main islands of the archipelago have been above the surface of the ocean (less than 10 million years) is only a fraction of time span over which biological colonization and evolution have occurred in the archipelago. High, volcanic islands have existed in the Pacific far longer, extending in a chain to the northwest; these once mountainous islands are now reduced to submerged banks and coral atolls. Midway Atoll, for example, formed as a volcanic