(Phys.org) —A geochemical analysis of prehistoric stone artifacts has revealed that Tonga was once the hub of a Pacific trading empire as large as 500,000 square kilometers. In a study published in the Proceedings of the National Academy of Sciences, Geoffrey Clarke of Australian National University and his team analyzed Tongan stone artifacts and found that two-thirds of them came from outside Tonga, one from as far as 2,500 kilometers away
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Research Reveals Tonga’s Role as Pacific Trade Hub
