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How old is Machu Picchu? The dead whisper a hint

Low dramatic clouds around Machu Picchu, Peru.

Carbon dating has pushed back the construction date of Machu Picchu, one of the grandest physical remnants of the Inca empire. Credit: Bérenger Zyla/Getty

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Nature 596, 167 (2021)

doi: https://doi.org/10.1038/d41586-021-02126-0

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