Dozens of rock art sites in southern New Mexico, recently documented for the first time, are revealing unexpected botanical clues that archaeologists say may help unlock the meaning of the…
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1,300-Year-Old Pottery Found in Colorado Contains Ancient ‘Natural Aspirin’
Fragmented pottery unearthed in a rockshelter in east central Colorado has revealed traces of salicylic acid, a substance derived from willow bark that’s the natural precursor to modern-day aspirin. Dated…
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