Ancient burial site in Siberia reveals 2800 year old cannabis use

Archaeologists discovered a burial site in southern Siberia containing evidence that humans used cannabis for psychological purposes 2,800 years ago.

Researchers from the University of Bern in Switzerland used radiocarbon dating to confirm the age of the site, which dates back to the early Scythian period. The site contains the remains of high-status individuals from nomadic groups known for their equestrian skills. Scientists found more than 1,400 preserved cannabis seeds and human hair samples within the tomb.

Chemical analysis of the hair revealed traces of tetrahydrocannabinol (THC), the primary compound responsible for the plant's mental effects. The presence of cannabinol, which forms when THC reacts with air, further confirmed the ancient use of the plant. Researchers suggest the cannabis might have played a role in funerary rituals or religious beliefs, as the site also contains dozens of horses and potential human sacrifices.

While the exact role of the plant in these rituals remains unproven, the discovery confirms that cannabis use for psychological purposes existed in Eurasia at least 3,000 years ago, possibly spreading from China to Europe.