
BRISBANE, AUSTRALIA—People first arrived on the Tongan island of Tongatapu around 2,800 years ago, according to a study by Marshall Weisler of the University of Queensland and David Burley of Simon Fraser University. In a new study, Weisler and his colleagues obtained dates for coral abraders, animal bones, shell tools, and charcoal from ovens from 20 Lapita sites across the Tongan archipelago using uranium- and radiocarbon-dating techniques. “We now have a precise chronology for the settlement of Tonga and the radiating out and occupying the islands of Tonga,” he told ABC Science. “Within one human generation or so the first settlers explored the rest of the archipelago and put down additional daughter communities.” The depletion of resources at the original site, the love of seafaring, and even sibling rivalry could have fueled the rapid settlement, he added. To read more about the colonization of the Pacific, see "Letter From Hawaii."