D-lysergic acid diethylamide, better known as LSD or “acid,” is a hallucinogenic drug made from lysergic acid, a natural chemical found in a fungus that grows on rye called Claviceps purpurea. LSD was first created in 1938 by a Swiss chemist named Albert Hoffmann who was searching for new drugs to stimulate patients’ circulation and breathing.
Dr. Hoffmann discovered LSD’s striking mental effects in 1943, and the drug was marketed under the brand name Delysid from 1947 to 1966. It was used to enhance the effectiveness of psychotherapy and to treat psychiatric illnesses such as depression and alcohol addiction. Starting in the 1950s, the United States Central Intelligence Agency and the Army conducted experiments to find out if LSD could be a useful tool for exerting “mind control” on enemies 1