On April 19, 1943, Albert Hofmann, a chemist for Sandoz, in Basel, Switzerland, has discovered LSD, where he experienced all the heavenly and hellish effects of lysergic acid diethylamide. Bicycle Day celebrates Swiss scientist Albert Hofmann's discovery of lysergic acid...

Can illegal drug distribution turn into an artform? Can collecting art get you in jail? And how did a system for labeling illegal substances turned into a way of preserving psychedelic culture’s history and a thriving collector’s’ market? And...