Psilocybin
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Teonanácatl, "carne de Dios"
c. 1541 (published 1858/1914)
Manuscript
Toribio de Benavente
Psilocybin
Ololiuhqui, Peyotl, and Teonanácatl in the Florentine Codex
Sahagún’s Book 11 on herbs that intoxicate
c. 1577
Source
Bernardino de Sahagún
Indigenous Knowledge, Ethnobotany
Hongos monteses in Durán's Historia de las Indias de Nueva España
Mushrooms, coronations, and the feast of revelations
c. 1581; published 1867
Source
José F. Ramírez
Indigenous Knowledge, Ethnobotany

On Aztec Botanical Names
December 1919
Academic Article
Blas Pablo Reko
Psilocybin

The Elements of Mazatec Witchcraft
1939
Academic Article
Jean Bassett Johnson
Psilocybin

Teonanacatl
The Narcotic Mushroom of the Aztecs
July-September 1940
Academic Article
Richard Evans Schultes
Ethnobotany, Psilocybin

Seeking the Magic Mushroom
May 13, 1957
Newspaper Article
R. Gordon Wasson
Psilocybin

Psilocybin Highlights Harvard Year
July 9, 1963
Newspaper Article
Efrem Sigel
Psilocybin

Psychedelic Review, No. 1
June 1963
Academic Article
Gerald Heard
LSD, Psilocybin

The Psychedelic Experience
A Manual Based on the Tibetan Book of the Dead
1964
Book
Timothy Leary
LSD, Psilocybin

Ginsberg Senate Testimony on LSD (1966)
June 14, 1966
Testimony
Allen Ginsberg
LSD, Psilocybin

Adverse Reactions to Hallucinogenic Drugs
Proceedings of a Conference Held at the National Institute of Mental Health
1969 (conference held September 29, 1967)
Source
National Institute of Mental Health
LSD, Psilocybin

CIA R&D and Testing of Behavioral Drugs (1975)
5 February 1975
Testimony
Donald F. Chamberlain
MKULTRA, LSD

NIDA Research Monograph 146
An Update (NIDA Research Monograph 146)
1994
Academic Article
Rick J. Strassman
Clinical, LSD

Oregon Measure 109
Approved by voters November 3, 2020; codified as Oregon Laws 2021, chapter 1
Source
Sheri Eckert
Psilocybin

FDA Psychedelic Drugs Guidance
Considerations for Clinical Investigations (Guidance for Industry)
July 2026 (finalizing a June 2023 draft)
Source
FDA Division of Psychiatry, Center for Drug Evaluation and Research
LSD, Psilocybin