Belinski asked criminologists in nearby Stavropol to analyze a black residue inside the vessels. The results came back positive for opium and cannabis, confirming a practice first reported by Herodotus. The Greek historian claimed that the Scythians used a plant to produce smoke "that no Grecian vapour-bath can surpass … transported by the vapor, [they] shout aloud."
Scythians marijuana bastard wars kurgan archaeology
http://news.nationalgeographic.com/2015/05/150522-scythians-marijuana-bastard-wars-kurgan-archaeology/
Scythians marijuana bastard wars kurgan archaeology.