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2,500-Year-Old Burial Hints at Ancient Cannabis Use

(LiveScience) About 2,500 years ago, mourners buried a man in an elaborate grave, and covered his chest with a shroud made of 13 Cannabis plants, according to a new study. The grave is one of a select few ancient Central Eurasian burials that archaeologists have found to contain Cannabis. This particular grave, located in northwestern China, sheds new light on how prehistoric people in the region used the plant in rituals, the researchers said. The finding, "a remarkable archeobotanical [also spelled 'archaeobotanical'] discovery in its own right," came about after the region's modern inhabitants decided to build a new cemetery next to a picturesque oasis, the researchers wrote in the study. However, construction workers soon found that an ancient graveyard was in their way. But more astonishingly, "13 nearly whole female Cannabis plants were laid diagonally across the body of the deceased like a shroud, with the roots and lower parts of the plants grouped together and placed below the pelvis," the researchers wrote in the study.


The Cannabis plants were long — about 19 to 35 inches (49 to 90 centimeters) in length, and reached to just under the man's chin on the left side of his face, the researchers said. Immature fruits on the Cannabis plant suggest that they were uprooted in late summer, indicating that the man was buried in late August or early September, the researchers said. Although the grave is between 2,400 and 2,800 years old, according to radiocarbon dating, the Cannabis remained intact because the region is bone-dry, the researchers said. There are years when it doesn't even rain. But river deposits, such as sand and pebbles — as well as the ancient remains of water plants, including horsetails and reeds — indicate that the ancient Jiayi cemetery once sat next to a riverbed, the researchers said. Grave M231 is hardly the only ancient Cannabis-containing burial. The Turpan Basin has another Subeixi graveyard called the Yanghai cemetery, which is also dated to the first millennium B.C., according to a 2006 study in the Journal of Ethnopharmacology. One of its burials had a large supply of processed Cannabis flowers in two containers — a coiled leather basket and a wooden bowl — that sat next to a male corpse, the 2006 study found. The grave didn't hold any evidence of hemp clothing or rope, which are made of the Cannabis plant. Rather, the plant's large seeds and high presence of cannabinol (a degraded product of the plant's psychoactive tetrahydrocannabinol, or THC) suggest that the Cannabis was used as a psychoactive substance, the researchers said. In addition, archaeologists have found Cannabis in graves located in tombs of the Pazyryk culture in southern Siberia, where there is also evidence of the plant's "ritualistic if not psychoactive usage," the researchers wrote in the study. Experts also discovered the plant in an Altai Mountain Pazyryk-culture tomb of a woman who had died of breast cancer and possibly used the Cannabis to help her cope with symptoms, the researchers said. Original article on Live Science.

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