Albert Hoffman is the 100 year old Swiss chemist who discovered LSD in 1943. April 19, 1943 is now "Bicycle Day" in honor of his realization that the new drug had powerful psychedelic powers.
- Craig Smith. "Nearly 100, LSD's Father Ponders His 'Problem Child'." The New York Times. Janurary 7, 2006.
- Hoffman's own description of how he discovered LSD-25.