The Lapita complex is part of the eastern migration branch of the Austronesian expansion, which started from Taiwan between about 5,000 and 6,000 years ago. Some of the emigrants reached Melanesia. There are different theories about the route they took to get there. They may have gone through the Marianas Islands, or through the Philippines, or both. The strongest support for the theory that the original people of the Lapita culture were Austronesian is linguistic evidence showing very considerable lexical continuity between Proto-Malayo-Polynesian (presumably spoken in the Philippines) and Proto-Oceanic (presumably spoken by the Lapita people). In addition, the patterns of linguistic continuity correspond to patterns of similarity in material culture.