in Melanesia, perhaps the Admiralty Islands. Archeological evidence has revealed that some of the Bonin Islands were prehistorically inhabited by members of an unknown Micronesian ethnicity. List of ethnic groups The Micronesian peoples can be divided into two cultural groups, the high-islanders and the low-islanders. The Palauans, Chamorros, Yapese, Chuukese, Pohnpeians, Kosraeans and Nauruans belong to the high-islander group. The inhabitants of the low islands (atolls) are the Marshallese and the Kiribati, whose culture is distinct from the high-islanders. Low-islanders had better navigation and canoe technology, as a means of survival. High-islanders had access to reliable and abundant resources and did not need to travel much outside of their islands. High islands also possessed larger populations. Banabans Raobeia Ken Sigrah claims that Banabans, native to Banaba, are ethnically distinct from other I-Kiribati. The Banabans were assimilated through forced migrations and the heavy impact of the discovery of phosphate in 1900. After 1945, the British authorities relocated most of the population to Rabi Island, Fiji, with subsequent waves of emigration in 1977, and from 1981 to 1983. Some Banabans subsequently returned, following the end of mining in 1979; approximately 300 were living on the island in 2001. The population of Banaba in the 2010 census was 295. There is an estimated 6,000 people of Banaban descent in Fiji and other countries. The Banabans spoke the Banaban language, which has gone extinct due to a shift to the Gilbertese language, introduced by Christian missionaries that translated the Bible into Gilbertese and encouraged the Banabans to read it. Today, only a few words remain of the original Banaban language. Today, the Banabans speak the Banaban dialect of Gilbertese, which includes words from the old Banaban language. Carolinian people It is thought that ancestors of the Carolinian people may have originally immigrated from the Asian mainland and Indonesia to Micronesia around 2,000 years ago. Their primary language is Carolinian, called Refaluwasch by native speakers, which has a total of about 5,700 speakers. The Carolinians have a matriarchal society in which respect is a very important factor in their daily lives, especially toward the matriarchs. Most Carolinians are of the Roman Catholic faith. The immigration of Carolinians to Saipan began in the early 19th century, after the Spanish reduced the local population of Chamorro natives to just 3,700. They began to immigrate mostly sailing from small canoes from other islands, which a typhoon previously devastated.