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Archaeologists excavating a monumental tomb in Siberia found seeds and preserved hair indicating the earliest known psychoactive use of cannabis, about 2,800 years ago.
Sources:PBS NewsHour

Updated
Archaeologists excavating a monumental tomb in Siberia found seeds and preserved hair indicating the earliest known psychoactive use of cannabis, about 2,800 years ago.
1 outlet · 1 article · first seen Nov 6, 9:00 PM ET