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. 2022 Dec 8;92(4):680–694. doi: 10.1227/neu.0000000000002275

FIGURE 2.

FIGURE 2.

Timeline of pivotal events and people in psychedelic history 1938 to 1999: Beginning with Albert Hofmann's synthesis of LSD-25 in 1938 and ending in the 1990s with the recommencement of psychedelic clinical studies in the United States and Europe, landmark scientific, cultural, and regulatory events and key individuals are noted. For more in-depth historical accounting of these and other pivotal events and people, readers are referred to these references:36,38-44. CIA, Central Intelligence Agency; DMT, N,N-dimethyltryptamine; LSD, lysergic acid diethylamide; MAPS, Multidisciplinary Association for Psychedelic Studies; MDMA, 3,4-methylenedioxymethamphetamine. © Pacific Neuroscience Institute Foundation, 2022. Used with permission.