The oldest cannabis stash ever found: 789 grams in a 2,700-year-old shaman's tomb
Phytochemical and genetic analyses of ancient cannabis from Central Asia.
Bottom Line
Phytochemical and genetic analysis of 789g of cannabis from a 2,700-year-old shaman's tomb confirmed it was cultivated for psychoactive use — the oldest physical specimen of drug-type cannabis.
Why It Matters
Establishes that humans were cultivating cannabis specifically for psychoactive use at least 2,700 years ago, predating all previous physical evidence and placing drug-type cannabis in a shamanic ritual context.
The Backstory
In the barren Turpan Depression of northwestern China — one of the lowest and hottest places on earth — archaeologists opened a 2,700-year-old tomb and found something extraordinary. Beside the skeleton of a man, wrapped in leather and wool, sat a basket and bowl containing nearly two pounds of dried cannabis. Green. Intact. Recognizable at a glance.
The tomb belonged to a shaman. His grave goods included bridles, archery equipment, and a kongou harp — accoutrements of a man of high status whose role involved ritual, music, and altered states of consciousness. The cannabis wasn't incidental. It was placed near his head and feet, alongside the tools of his trade.
When Ethan Russo — a neurologist, ethnobotanist, and one of the world's foremost cannabis researchers — got the call to analyze the specimen, he knew immediately what he was looking at. And what he confirmed would rewrite the timeline of humanity's relationship with cannabis.
The Yanghai Tombs
The Yanghai cemetery complex lies near the ancient city of Turfan on the northern edge of the Taklamakan Desert, along what would become the Silk Road. Excavated by Chinese archaeologists beginning in 2003, the cemetery contained hundreds of graves spanning roughly 3,000 years.
Tomb M90 stood out. Radiocarbon dating placed it at approximately 700 BCE. The occupant was a Caucasoid male, roughly 45 years old, of high social standing. His burial goods pointed clearly to a shamanic role in his community — the Gushi people, an ancient Central Asian culture that occupied the Turpan Basin.
The Analysis
Ethan Russo assembled an international team spanning ethnobotany, genetics, and analytical chemistry to conduct the most thorough analysis ever performed on ancient cannabis.
789 grams
of dried cannabis flower material found in the shaman's tomb — nearly two pounds. This is not a symbolic quantity. It is a working supply, consistent with regular use by a practitioner for whom cannabis was a professional tool.
For comparison, the legal possession limit in most US states with recreational cannabis is 28 grams (one ounce). The Gushi shaman was buried with roughly 28 times that amount — and this was 2,700 years before anyone thought to make cannabis illegal.
Russo et al. (2008)
The Researcher
Ethan Russo is not a typical cannabis scientist. Trained as a neurologist at the University of Washington, he became one of the most prolific researchers in cannabis pharmacology — publishing the foundational papers on the entourage effect, clinical endocannabinoid deficiency, and the tale of two cannabinoids. But his interests span ethnobotany, medical anthropology, and the history of plant-based medicine.
The Yanghai cannabis analysis combined all of these threads. It required a researcher who understood both analytical chemistry and shamanic practice, both cannabinoid pharmacology and Silk Road archaeology. Russo was perhaps the only person in the world with the right combination of expertise.
His conclusion was unequivocal: "This is by far the most extraordinary find of ancient cannabis to date. The cannabis was cultivated for psychoactive purposes — it was not hemp."
What This Tells Us About Human Cannabis History
The Yanghai finding, combined with Ren's Jirzankal discovery, establishes Central Asia — specifically the corridor from the Turpan Depression to the Pamir Plateau — as the cradle of psychoactive cannabis culture.
The timeline reveals something profound: psychoactive cannabis use has been part of human culture for at least 2,700 years, likely much longer. The modern prohibition of cannabis — dating to the early 20th century — represents a brief anomaly in a millennia-long history of human-cannabis coevolution.
Key Takeaways
Phytochemical and genetic analyses of ancient cannabis from Central Asia
Russo EB, Jiang HE, Li X, Sutton A, Carboni A, del Bianco F, Mandolino G, Potter DJ, Zhao YX, Bera S, Zhang YB, Lu EG, Ferguson DK, Hueber F, Zhao LC, Liu CJ, Wang YF, Li CS () · Journal of Experimental Botany
Frequently Asked Questions
Cite this study
Russo, Ethan B; Jiang, Hong-En; Li, Xiao; Sutton, Alan; Carboni, Andrea; del Bianco, Fabrizio; Mandolino, Giuseppe; Potter, David J; Zhao, You-Xing; Bera, Subir; Zhang, Yu-Bing; Lu, En-Guo; Ferguson, David K; Hueber, Francis; Zhao, Liang-Cheng; Liu, Chang-Jiang; Wang, Yu-Fei; Li, Cheng-Sen. (2008). Phytochemical and genetic analyses of ancient cannabis from Central Asia.. Journal of Experimental Botany, 59(15), 4171-4182. https://doi.org/10.1093/jxb/ern260