Period Notes |
Radiocarbon dates, calibrated to 2 sigma: Beta-473311, 2140+/-30 BP, calibrated to 351 BC to 52 BC; Beta-473312, 5160+/-30 BP, calibrated to 4045-3816 BC (possibly not reliable source); Beta-473313, 2610+/-30 BP, calibrated to 821-769 BC;
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