I wonder where then we would put the first acid trip, taken when the chemist Albert Hoffman accidentally absorbed some Lysergic acid diethylamide that he had synthesized in his lab. He knew a very powerful organic compound had crossed into his bloodstream, but that’s about it!..talk about harrowing! If memory serves, he returned to his lab and took the first intentional trip shortly thereafter. Hoffmann revisited the LSD experience periodically throughout his life, right up until his death at the ripe old age of 92.