The Lapita culture is the name given to a Neolithic Austronesian people and their material culture, who settled Island Melanesia via a seaborne migration at around 1600 to 500 BCE. They are believed to have originated from the northern Philippines, either directly, via the Mariana Islands, or both. They were notable for their distinctive geometric designs on dentate-stamped pottery, which closely resemble the pottery recovered from the Nagsabaran archaeological site in northern Luzon. The Lapita intermarried with the Papuan populations to various degrees, and are the direct ancestors of the Austronesian peoples of Polynesia, eastern Micronesia, and Island Melanesia. The term 'Lapita' was coined by archaeologists after mishearing a word in the local Haveke language, xapeta'a, which means 'to dig a hole' or 'the place where one digs', during the 1952 excavation in New Caledonia. The Lapita archaeological culture is named after the type site where it was first uncovered in the Foué peninsula on Grande Terre, the main island of New Caledonia. The excavation was carried out in 1952 by American archaeologists Edward W. Gifford and Richard Shulter Jr at 'Site 13'. The settlement and pottery sherds were later dated to 800 BCE and proved significant in research on the early peopling of the Pacific Islands. More than 200 Lapita sites have since been uncovered, ranging more than 4,000 km from coastal and island Melanesia to Fiji and Tonga with its most eastern limit so far in Samoa. 'Classic' Lapita pottery was produced between 1,600 and 1,200 BCE on the Bismarck Archipelago. Artifacts exhibiting Lapita designs and techniques from a period later than 1,200 BCE have been found in the Solomon Islands, Vanuatu and New Caledonia. Lapita pottery styles from around 1,000 BCE have been found in Fiji and Western Polynesia. In Western Polynesia, Lapita pottery became less decorative and progressively simpler over time. It seems to have stopped being produced altogether in Samoa by about 2,800 years ago, and in Tonga by about 2,000 years ago.