This is misinformation. It contains ibotenic acid and muscimol. The effects are very different than psilocybin containing mushrooms.
Reference on the chemical compounds: https://pharmacia.pensoft.net/article/56112/
I never heard of christmas deriving from reindeer, it is commonly associated with winter solstice, but given the first record of the festivity is in Rome in 336CE it seems odd.
Maybe you mean the "association of reindeer with christmas", but that seems likely to have originated in the 19th century.
Do you have any source?
And I mean... obviously. A red and white mushroom that can get you high as fuck with the help of some reindeer...
https://www.livescience.com/42077-8-ways-mushrooms-explain-s...
but the "Father Christmas" in english tradition was green.
https://www.ssgreatbritain.org/why-is-our-father-christmas-g...
Honestly, it would be groundbreaking if one grandma told stories about how her mother used to make mushroom tea. But we don’t have those stories. And, there is nothing in all of the Latin and Greek texts of the past 2500 years. It is a real enigma.
For example, this paper[0] explores the ethnobotanic use of hallucinogenic mushrooms in Slovenia says
> Use of hallucinogenic plants and fungi, believed to extend back thousands of years, is an important part of the human experience
> The term hallucinogen first became popular in the 1950s and was originally used as the substances were said to produce hallucinations, though we now know that this is often not the case at lower doses
Ancient Greeks drank psychoactive concoctions that contained a mix of psychedelic mushrooms and even reports from the Middle Ages document their use. Clusius (1525-1609), a physician and botanist, discovered ‘bolond gomba’, a mushroom known in Germany as Narrenschwamm or Fool's mushroom, which was used in rural areas to concoct a love potion. ‘Fools mushrooms’ were also documented around the same time in Slovakia, Poland, and in England
Fool’s mushroom also does not have psilocybin.
And Psilocybe themselves are global in distribution with hundreds of species. Almost all hallucinogenic and none are poisonous.
A quick google search shows we have evidence for magic mushroom use in Europe for at least up to 6k years ago:
https://www.newscientist.com/article/mg20928025-400-earliest...