The Micronesians or Micronesian peoples are various closely related ethnic groups native to Micronesia, a region of Oceania in the Pacific Ocean. They are a part of the Austronesian ethnolinguistic group, which has an Urheimat in Taiwan. Ethno-linguistic groups classified as Micronesian include the Carolinians (Northern Mariana Islands), Chamorros (Guam & Northern Mariana Islands), Chuukese, Mortlockese, Namonuito, Paafang, Puluwat and Pollapese (Chuuk), I-Kiribati (Kiribati), Kosraeans (Kosrae), Marshallese (Marshall Islands), Nauruans (Nauru), Palauans, Sonsorolese (Palau), Pohnpeians, Pingelapese, Ngatikese, Mwokilese (Pohnpei), and Yapese, Ulithian, Woleian, Satawalese (Yap). Origins Based on the current scientific consensus, the Micronesians are considered, by linguistic, archaeological, and human genetic evidence, to be a subset of the sea-migrating Austronesian people, who include the Polynesians and the Melanesians. Austronesians were the first people to invent oceangoing sailing technologies (notably double-hulled sailing canoes, outrigger boats, lashed-lug boat building, and the crab claw sail), which enabled their rapid dispersal into the islands of the Indo-Pacific. From 2000 BCE the Austronesians assimilated (or were assimilated by) the earlier populations on the islands in their migration pathway. This intermingling occurred in the northern coast of New Guinea and adjacent islands, which was the location where the Oceanic language family developed around four thousand years or so ago, after the Austronesian languages of this area grew distinct and became a separate branch of the Austronesian family. Migrants entered Micronesia from the east and the west. Migrants from the west came from the Philippines and Indonesia, and settled the Marianas around 3500 years ago, after which Palau was settled around 3000 years ago. Migrants from the east came from eastern Melanesia and settled the Gilbert Islands, Marshall Islands, eastern and central Caroline Islands, Sonsorol, Pulo Anna, Merir and Tobi. The migrants from the east belonged to the Lapita culture and settled eastern Micronesia over the course of several hundreds of years from perhaps the Santa Cruz Islands, around 500-100 BC. In the following centuries, the Oceanic language variant brought by the Lapita migrants diverged and became the Micronesian branch of the Oceanic languages. John Lynch tentatively proposes a relationship between the Micronesian languages and the Loyalty Islands languages of Melanesia, but with the caveat "that this is something that could well be further investigated, even if only to confirm that Micronesian languages did not originate in the Loyalties." Yap was settled separately approximately 2000 years ago, as its language was brought by an Oceanic-speaking source