When Did Humans First Use Psychedelics?

Summary

The video asks how far back humans have deliberately used substances to alter their minds. Its central point is that the oldest surviving evidence is not necessarily the beginning of the behavior: many plants and fungi decay, leaving archaeologists with only rare traces.

Archaeological Evidence—and Its Limits

• Peyote in Texas: Two dried peyote buttons found in a cave near the Rio Grande are described as nearly 6,000 years old. Mescaline was still detectable, making them the video’s example of the oldest chemically confirmed drug use in the archaeological record.
• Other plant evidence: The narrator cites evidence of opium-poppy use at Mediterranean sites dating to around 5700 BC and cannabis seeds in Asian excavations dating to around 8000 BC.
• Rock art: Paintings in the Sahara’s Tassili n’Ajjer region and near Villar del Humo in Spain have been interpreted as depicting mushrooms or mushroom use. These interpretations are uncertain: images can suggest a possibility, but they cannot establish it chemically.
• A Bolivian ritual pouch: A roughly 1,000-year-old pouch found in the Andes contained residues of at least five hallucinogenic substances, including ingredients associated with ayahuasca preparation.
• Written testimony: The Greek historian Herodotus described Scythians inhaling cannabis smoke in enclosed tents. The video presents this as an early written account of deliberate intoxication.

Because organic materials usually rot, the surviving record is heavily biased toward unusual conditions, such as dry caves, sealed containers, or images painted on rock. Thus, evidence becoming visible around the beginnings of agriculture does not prove that use began then; it may simply mark when evidence starts to survive.

Use Was Often Ritual, Not Recreational

The video argues against imagining ancient psychoactive use mainly as casual entertainment. It describes these substances as powerful and often restricted tools used in ceremonies—for healing, communicating with the dead or spiritual beings, and marking life transitions.

It also notes that Spanish conquistadors condemned Indigenous ceremonial use of peyote and mushrooms as devilish, while the narrator frames those practices as part of much older sacred traditions.

Possible Deep Roots and a Rejected Hypothesis

• Chimpanzees deliberately eat certain plants for medicinal effects, suggesting that purposeful plant use may have roots older than humanity. This is presented as a possibility, not proof that chimpanzees use psychedelics or that human psychedelic traditions date back millions of years.
• Ethnobotanist Terence McKenna’s “stoned ape” hypothesis claimed that psilocybin mushrooms helped drive human brain expansion and the development of language, imagination, and religion.
• The narrator says this hypothesis lacks solid evidence, does not fit the fossil timeline, and is not taken seriously as a scientific explanation.

The Broader Idea

The narrator sees the repeated discovery of mind-altering substances across cultures as evidence of a widespread human impulse. Some substances affect the brain because they interact with receptors used by the body’s own signaling chemicals. That explains how they can work—not why people across eras and societies have been drawn to altered states despite the risks.

The video closes with an open question: Is this impulse a flaw, an accident of human design, or a clue to something people deeply seek in the experience of having a mind?

Speakers and Sources Featured

• Speaker: An unnamed narrator, who presents the video’s account and interpretation.
• Archaeological and material evidence: The Texas peyote buttons and chemical analysis; opium-poppy and cannabis finds; rock art in Tassili n’Ajjer and near Villar del Humo; and the Bolivian ritual pouch and residue analysis.
• Historical source: The Greek historian Herodotus, whose account of the Scythians is summarized.
• Named researcher: Terence McKenna, proposer of the “stoned ape” hypothesis.
• Other groups referenced: Archaeologists and researchers interpreting the finds and artwork; Scythians; Indigenous peoples using peyote and sacred mushrooms in ceremonies; and chimpanzees, discussed as an example of purposeful medicinal plant use.