Scientist who in 1938, while attempting to develop a possible headache remedy, synthetically produced lysergic acid diethylamide, or LSD. Five years after its creation Hofmann accidentally discovered the hallucinogenic properties/capabilities of the drug. The following passage is from the good chemist's log of his own initial experience with LSD:

"Last Friday, April 6th, 1943, I was forced to interrupt my work in the laboratory in the middle of the afternoon and proceed home, being affected by a remarkable restlessness, combined with a slight dizziness. At home I lay down and sank into a not unpleasant intoxicated-like condition, characterized by an extremely stimulated imagination. In a dreamlike state, with eyes closed (I found daylight to be unpleasantly glaring), I perceived an uninterrupted stream of fantastic pictures, extraordinary shapes with intense, kaleidoscopic play of colors. After some two hours this condition faded away.

Hofmann passage quoted from Drugs Across the Spectrum