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Austronesian diaspora shows that around 60% of Austronesian-speaking people live in Indonesia. Among the locations with traces of Austronesian cultural remains is the information about the diaspora of Research reveals that the continuing megalithic tradition. The problem is: if megalithic culture was brought by migrants in which Austronesian period did the menhirs should be placed, the proto-historic or recent Austronesian; how is the dispersal pattern of the menhirs; and who were the bearers of the culture. Therefore we have to reveal the form and dispersal of the megalithic culture and Austronesian migration in Lima Puluh Koto Area. The aim of this research is revealing cultural history through the migrant's adaptation within the perspective of Austronesian diaspora. Thus information about the diaspora of the Austronesians and the ethnogenesis of Indoneisan nation can be recognized. Research reveals that the continuing megalithic tradition which is used the qualitative method and assumed base on archaeological remains at Lima Puluh Koto area is a distribution of menhirs, that forms clusters in accordance with nagari (state) at certain area, and they are dispersed up to the hilly area. Some of these menhirs have sacred function but there are also those with profane functions like marks of village, house yard, or street boundaries, as well as the marker of village or hamlet roads.Diaspora Austronesia menunjukkan kurang lebih 60% penutur tinggal di Indonesia. Salah satu lokasi jejak Austronesia adalah di Kabupaten Lima Puluh Koto, Sumatera Barat, yaitu sebaran menhir yang mencapai ratusan jumlahnya. Bentuk budaya Austronesia dikenal sebagai budaya yang meneruskan tradisi-tradisi masa prasejarah dan berlanjut pada masa sejarah, seperti tradisi megalitik. Permasalahannya adalah, apabila budaya megalitik dibawa oleh para migran, pada periode Austronesia protosejarah ataukah Austronesia masa kini menhir-menhir tersebut berada?, bagaimana pola sebaran menhir-menhir tersebut? dan siapa pendukungnya?. Penelitian ini berusaha mengungkapkan bentuk dan persebaran budaya megalitik dan migrasi Austronesia di Kawasan Lima Puluh Koto. Maksud dan tujuan penelitian ini adalah untuk mengungkapkan sejarah kebudayaan dan adaptasi kaum migran dalam perpekstif diaspora Austronesia, sehingga memperkaya informasi tentang diaspora Austronesia dan asal-usul etnogenesis bangsa Indoensia. Hasil penelitian yang dilakukan dengan metode kualitatif ini menunjukkan bahwa tradisi megalitik di kawasan Lima Puluh Koto adalah sebaran menhir yang membentuk kelompok-kelompok berdasarkan nagari pada area tertentu. Sebaran menhir ini selain mempunyai fungsi sakral juga mempunyai fungsi profan antara lain sebagai batas kampung, batas halaman, maupun batas jalan raya desa, atau jalan-jalan di kampung.

Out of Taiwan is one of the theories about the dispersion of the Austronesian people, which is the most popular among the researchers who study the Austronesian people and culture until now. The theory’s popularity is supported by linguistic, anthropological, DNA, and dating, as well as archaeological data. The quite abundant archaeological data has contributed to the existence of the theory, among others the hypothesis about the dispersion of quadrangular adzes and rounded axes. The migration based on reveals human migration route from the Philippines to Sulawesi (Celebes), and from Sulawesi it was split into two directions, one of which went westward to Kalimantan (Borneo) and moved on to Sumatra, Java, Bali, and East Nusa Tenggara. The other route was to the eastern part of Indonesia. The route to the west is associated with quadrangular adze distribution, while the one to the eastern part of Indonesia is associated with round axe distribution. Furthermore, the red-slipped pottery was initially existed only in the eastern part of Indonesia, which led to a hypothesis that its distribution was limited to that region. But later the red-slipped pottery was also found in the western part of Indonesia, which indicates that there was human migration from the Austronesian place of origin (Southern China) to West Indonesia. In accordance with the migration route to the western part of Indonesia, and based on information obtained from excavations at a number of sites in that area, as well as carbon analyses and other analyses using descriptive qualitative method with inductive reasonings, there is an increasingly strong indication that there were migrations of Prehistoric Austronesian speakers, which tend to be different from the Out of Taiwan migration route. Naskah