Humans Started Enjoying Cannabis in China Circa 2800 BC

Judging by how certain American cities smell these days, you’d think cannabis was invented last week. But that spike in enthusiasm, as well as in public indulgence, comes as only a recent chapter in that substance’s very long history. In fact, says the presenter of the PBS Eons video above, humanity began cultivating it “in what’s now China around 12,000 years ago. This makes cannabis one of the single oldest known plants we domesticate,” even earlier than “staples like wheat, corn, and potatoes.” By that time scale, it wasn’t so long ago — four millennia or so — that the lineages used for hemp and for drugs genetically separated from each other.

The oldest evidence of cannabis smoking as we know it, also explored in the Science magazine video below, dates back 2,500 years. “The first known smokers were possibly Zoroastrian mourners along the ancient Silk Road who burned pot during funeral rituals,” a proposition supported by the analysis of the remains of ancient braziers found at the Jirzankal cemetery, at the foot of the Pamir mountains in western China. “Tests revealed chemical compounds from cannabis, including the non-psychoactive cannabidiol, also known as CBD” — itself reinvented in our time as a thoroughly modern product — and traces of a THC byproduct called cannabinol “more intense than in other ancient samples.”

What made the Jirzankal cemetery’s stash pack such a punch? “The region’s high altitude could have stressed the cannabis, creating plants naturally high in THC,” writes Science’s Andrew Lawler. “But humans may also have intervened to breed a more wicked weed.” As cannabis-users of the sixties and seventies who return to the fold today find out, the weed has grown wicked indeed over the past few decades. But even millennia ago and half a world away, civilizations that had incorporated it for ritualistic use — or as a medical treatment — may already have been agriculturally guiding it toward greater potency. Your neighborhood dispensary may not be the most sublime place on Earth, but at least, when next you pay it a visit, you’ll have a sound historical reason to cast your mind to the Central Asian steppe.

Related content:

The Drugs Used by the Ancient Greeks and Romans

Pipes with Cannabis Traces Found in Shakespeare’s Garden, Suggesting the Bard Enjoyed a “Noted Weed”

Reefer Madness, 1936’s Most Unintentionally Hilarious “Anti-Drug” Exploitation Film, Free Online

Carl Sagan on the Virtues of Marijuana (1969)

Watch High Maintenance: A Critically-Acclaimed Web Series About Life & Cannabis

The New Normal: Spike Jonze Creates a Very Short Film About America’s Complex History with Cannabis

Based in Seoul, Colin Marshall writes and broadcasts on cities, language, and culture. His projects include the Substack newsletter Books on Cities, the book The Stateless City: a Walk through 21st-Century Los Angeles and the video series The City in Cinema. Follow him on Twitter at @colinmarshall or on Facebook.