'Oldest pottery' found in China





Examples of pottery found in a cave at Yuchanyan in China's Hunan province may be the oldest known to science.

By determining the fraction of a type, or isotope, of carbon in bone fragments and charcoal, the specimens were found to be 17,500 to 18,300 years old.

The authors say that the ages are more precise than previous efforts because a series of more than 40 radiocarbon-dated samples support the estimate.

The work is reported in the Proceedings of the National Academy of Sciences.

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