Via Glacier Hub:
Evidence of marijuana use is scattered throughout the archaeological record of human civilization. Residue from most of those excavation sites indicates that the cannabis used by ancient humans was of too low potency to make any determination about its cultivation. This finding has led archaeologists to conclude that the plants were likely wild varieties rather than ones domesticated by humans.
A recent find at a cemetery in the glacier-rich Pamirs of western China, however, indicates that humans may have intentionally selected higher potency strains of marijuana as early as 500 BC.
The research team, which included archaeologists and chemists from the Chinese Academy of Sciences and the Chinese Academy of Social Sciences in Beijing, published their findings in the June 12 issue of the journal Science Advances.
Read full article in Glacier Hub.