The Fungus "Ergot of Rye"
I think it's called clavicepts.
Its a fungus and these alkaloids are in the fungus that grows on the grain.
Everybody got sick and they found out it was the fungus on the grain. "Ergot"
And they studied it for sometime, mabey years.
And finally Stoll, Hoffman, and other professores found the answer.
Hoffman made LSD.
Hoffman did not know that he had a hallucinogenic substance until he spilled it on his hand and later started to hallucinate.
And then LSD was there.