I'd love it if someone went through all of the historic fairy tales and folklore and tried to validly link local psychoactive and hallucinogenic plants to them.

That would be the sociological equivalent of saying "Zoom in, enhance, zoom in, enhance" forty times in a row, until you can identify the shooter from a reflection off a raindrop.

"Where are mushrooms with these chemicals found?" "In ~50% of arable land on Earth." "When was the earliest known rendition of this fairytale?" "8-10 generations ago."