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Ancient Peruvian Hallucinogen Use May Have Cemented Power, Social Order

Limiting access to mind-altering substances may have provided leaders with a means to create, control a class system.

ByPaul Smaglik
The site of Chavin de Huantar in modern-day Peru hosts several monumental buildings overseeing a large plaza, located at an elevation of 10,000 ft.Image Credit: Daniel Contreras

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Farming, crafts, and trade all helped establish the foundation of a South American society known as the Chavin Phenomenon, which predated the Incas by about 2,000 years.

But there was one more ingredient that tied it all together — hallucinogens. Unlike the other three elements, consuming mind-altering substances wasn’t a shared, communal experience, but rather a source for the leader’s power based on mystical visions, according to a study published in the journal Proceedings of the National Academy of Sciences.

“Taking psychoactives was not just about seeing visions,” Daniel Contreras, a University of Florida anthropologist and co-author of the study, said in a press release. “It was part of a tightly controlled ritual, likely reserved for a select few, reinforcing the social hierarchy.”

Snuff tubes carved from hollow bones and used to inhale tobacco and hallucinogenic vilca. (Image Credit: Daniel Contreras)

Daniel Contreras

A cache of ancient snuff tubes carved ...

  • Paul Smaglik

    Before joining Discover Magazine, Paul Smaglik spent over 20 years as a science journalist, specializing in U.S. life science policy and global scientific career issues. He began his career in newspapers, but switched to scientific magazines. His work has appeared in publications including Science News, Science, Nature, and Scientific American.

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