Today, Bicycle Day, is celebrated annually on April 19 to commemorate Dr. Albert Hofmann’s intentional discovery of the effects of LSD (lysergic acid diethylamide) in 1943. While Hofmann had synthesized the compound five years earlier at Sandoz Laboratories in Basel, Switzerland, he didn't realize its potency until he accidentally absorbed a small amount through his fingertips on April 16. Three days later, he decided to conduct a self-experiment. The Historic Ride On April 1