The dynamics of human expansion and cultural diversification in Southeast Asia and Oceania during the Neolithic
Human origins in mainland Southeast Asia result from successive waves of migration from the north and west. The first crossing of large water gaps is attested by at least 40,000 BP with the successful colonization of Sahul. The rapid spread of innovative farming economies and their associated cultures develop from 10,000 BP in China and along the main Asian watercourses. Well-established farming cultures interact with coastal fishing communities by 6,000 BP leading to the development of extensive maritime networks. By 3,000 BP most Melanesian and Western Polynesian islands are settled by Lapita potters. The implicit link between the Lapita diaspora and the introduction of Austronesian languages into previously uninhabited islands has resulted in the Lapita period being often perceived as a genuine local expression of the early Austronesian diaspora. The picture that emerges today is a complex one which calls for a reassessment of the generally used ‘Out of Taiwan’ linguistic and archeological model.