The history of psilocybin research — from Wasson to clinical trials

The timeline: 1955: R. Gordon Wasson participates in a Mazatec ceremony with Maria Sabina in Oaxaca, Mexico — the event that introduces psilocybin to Western public consciousness. 1958: Albert Hofmann isolates psilocybin and psilocin from Psilocybe mexicana specimens; characterizes the compounds chemically. 1960s: Timothy Leary and Richard Alpert (later Ram Dass) conduct the Harvard Psilocybin Project. Widespread clinical and cultural interest. 1970: Controlled Substances Act places psilocybin in Schedule I — research effectively stops for 20+ years. 1994: Rick Strassman begins DMT research at University of New Mexico — the relaunch of psychedelic research. 2001: Johns Hopkins receives FDA approval for psilocybin research — the modern revival begins. 2006: Hopkins and NYU cancer anxiety trials (psilocybin for end-of-life distress) published — landmark results. 2016: Major depression treatment paper; personality change study published. 2018-2022: Smoking cessation, depression, and alcohol trials publish. 2020: Oregon Measure 109 passes. 2023: Australia authorizes psilocybin therapy — first national approval. 2024-2026: COMPASS Phase 3 trials; VA research mandate.

The most important thing the history reveals: the research didn't stop because it wasn't working — it stopped because of political and cultural forces (Nixon administration's response to the 1960s counterculture). The clinical data from the early 1960s was largely positive and consistent with what we're seeing now. We lost 30 years of research progress to prohibition.

Maria Sabina deserves particular mention. She was the Mazatec curandera who conducted the ceremony Wasson attended. After his Life magazine article in 1957, she was sought by countless Western visitors and was later ostracized by her community for what they saw as betrayal of sacred traditions. She lived in poverty and died in 1985. The entire Western psychedelic tradition stands on knowledge she carried — this history is worth holding.