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      The Austronesian Homeland and Dispersal

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      Annual Review of Linguistics
      Annual Reviews

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          Abstract

          The Austronesian language family is the second largest on Earth in number of languages, and was the largest in geographical extent before the European colonial expansions of the past five centuries. This alone makes the determination of its homeland a research question of the first order. There is now near-universal agreement among both linguists and archaeologists that the Austronesian expansion began from Taiwan, somewhat more than a millennium after it was settled by Neolithic rice and millet farmers from Southeast China. The first “long pause,” between the settlement of Taiwan and of the northern Philippines, may have been due to inadequate sailing technology, an obstacle that was overcome by the invention of the outrigger canoe complex. The second “long pause,” between the settlement of Fiji–Western Polynesia and of the rest of Triangle Polynesia, may also have been due to inadequate sailing technology, an obstacle that was overcome by the invention of the double-hulled canoe.

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          Language phylogenies reveal expansion pulses and pauses in Pacific settlement.

          Debates about human prehistory often center on the role that population expansions play in shaping biological and cultural diversity. Hypotheses on the origin of the Austronesian settlers of the Pacific are divided between a recent "pulse-pause" expansion from Taiwan and an older "slow-boat" diffusion from Wallacea. We used lexical data and Bayesian phylogenetic methods to construct a phylogeny of 400 languages. In agreement with the pulse-pause scenario, the language trees place the Austronesian origin in Taiwan approximately 5230 years ago and reveal a series of settlement pauses and expansion pulses linked to technological and social innovations. These results are robust to assumptions about the rooting and calibration of the trees and demonstrate the combined power of linguistic scholarship, database technologies, and computational phylogenetic methods for resolving questions about human prehistory.
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            The Prehistoric Exploration and Colonisation of the Pacific

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              High-precision radiocarbon dating shows recent and rapid initial human colonization of East Polynesia.

              The 15 archipelagos of East Polynesia, including New Zealand, Hawaii, and Rapa Nui, were the last habitable places on earth colonized by prehistoric humans. The timing and pattern of this colonization event has been poorly resolved, with chronologies varying by >1000 y, precluding understanding of cultural change and ecological impacts on these pristine ecosystems. In a meta-analysis of 1,434 radiocarbon dates from the region, reliable short-lived samples reveal that the colonization of East Polynesia occurred in two distinct phases: earliest in the Society Islands A.D. ∼1025-1120, four centuries later than previously assumed; then after 70-265 y, dispersal continued in one major pulse to all remaining islands A.D. ∼1190-1290. We show that previously supported longer chronologies have relied upon radiocarbon-dated materials with large sources of error, making them unsuitable for precise dating of recent events. Our empirically based and dramatically shortened chronology for the colonization of East Polynesia resolves longstanding paradoxes and offers a robust explanation for the remarkable uniformity of East Polynesian culture, human biology, and language. Models of human colonization, ecological change and historical linguistics for the region now require substantial revision.
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                Author and article information

                Journal
                Annual Review of Linguistics
                Annu. Rev. Linguist.
                Annual Reviews
                2333-9683
                2333-9691
                January 14 2019
                January 14 2019
                : 5
                : 1
                : 417-434
                Affiliations
                [1 ]Department of Linguistics, University of Hawai‘i, Honolulu, Hawai‘i 96822, USA;
                Article
                10.1146/annurev-linguistics-011718-012440
                c12d5ca8-ce91-4bc1-b959-1c880a9a0573
                © 2019
                History

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