This day—April 19—is the 78th anniversary of the first-ever acid trip. It is affectionately referred to by psychonauts around the globe as Bicycle Day. The psychedelic compound LSD is known ...

(Courtesy Aldous and Laura Huxley Papers, UCLA) The seeds of the LSD trip were planted a year earlier, in the summer of 1955. Aldous Huxley, recently widowed and struggling with his grief ...