2,500-year-old cannabis braziers

In the Pamirs, at the Jirzankal cemetery 3,000 meters above sea level, wooden braziers and burnt stones were found. The braziers held traces of cannabis. In rites for the dead, cannabis may have been thrown on hot stones and the smoke inhaled. Herodotus also writes that the Scythians held a similar steam rite after funerals. This is the oldest known chemical evidence of cannabis smoke.
Source: Meng Ren ve ark., “The origins of cannabis smoking: Chemical residue evidence from the first millennium BCE in the Pamirs”, Science Advances 5(6), 2019 (Ren et al., Science Advances, 2019). This is a folk record, not a treatment recommendation.

Flour sprinkled on wounds: yarrow