Albert Hofmann deliberately doses himself with LSD for the first time, three days after having discovered its effects on April 16, an event commonly known and celebrated as Bicycle Day.

Albert Hofmann

Swiss chemist (1906–2008)

Albert Hofmann was a Swiss chemist known for being the first to synthesize, ingest, and learn of the psychedelic effects of lysergic acid diethylamide (LSD). Hofmann's team also isolated, named and synthesized the principal psychedelic mushroom compounds psilocybin and psilocin.…

LSD

Hallucinogenic drug

Lysergic acid diethylamide, commonly known as LSD and by the slang names acid and lucy, is a semisynthetic, hallucinogenic drug derived from ergot, known for its powerful psychological effects and serotonergic activity. It was historically significant in psychiatry and 1960s…

April 16

Day of the year

April 16 is the 106th day of the year in the Gregorian calendar; 259 days remain until the end of the year.

History of LSD

The psychedelic drug lysergic acid diethylamide (LSD) was first synthesized on November 16, 1938, by the Swiss chemist Albert Hofmann in the Sandoz laboratories in Basel, Switzerland. It was not until five years later on April 19, 1943, that the psychedelic properties were found.