The Leaf THE LEAF November-December 2019 | Page 27

Cannabis History: How One Plant Spread Through the World By Agata Blaszczak-Boxe - Staff Writer October 17, 2014 Health – Live Science The other plant is Cannabis sativa L. (The L was included in the name in honour of the botanist Carl Linnaeus.) This subspecies is known as hemp; it is a no psychoactive form of cannabis, and is used in manufacturing products such as oil, cloth and fuel. A second psychoactive species of the plant, Cannabis Indica, was identified by the French naturalist Jean-Baptiste Lamarck, and a third, uncommon one, Cannabis ruderalis, was named in 1924 by Russian botanist D.E. Janischevisky. From the sites where prehistoric hunters and gatherers lived, to ancient China and Viking ships, cannabis has been used across the world for ages, and a new report presents the drug's colourful history. In the report, author Barney Warf describes how cannabis use originated thousands of years ago in Asia, and has since found its way to many regions of the world, eventually spreading to the Americas and the United States. "For the most part, it was widely used for medicine and spiritual purposes," during pre- modern times, said Warf, a professor of geography at the University of Kansas in Lawrence. For example, the Vikings and medieval Germans used cannabis for relieving pain during childbirth and for toothaches, he said. "The idea that this is an evil drug is a very recent construction," and the fact that it is illegal is a "historical anomaly," Warf said. Marijuana has been legal in many regions of the world for most of its history. Where did pot come from? It is important to distinguish between the two familiar subspecies of the cannabis plant, Warf said. Cannabis sativa, known as marijuana, has psychoactive properties. Cannabis plants are believed to have evolved on the steppes of Central Asia, specifically in the regions that are now Mongolia and southern Siberia, according to Warf. The history of cannabis use goes back as far as 12,000 years, which places the plant among humanity's oldest cultivated crops, according to information in the book "Marihuana: The First Twelve Thousand Years" (Springer, 1980). "It likely flourished in the nutrient-rich dump sites of prehistoric hunters and gatherers," Warf wrote in his study. Burned cannabis seeds have also been found in kurgan burial mounds in Siberia dating back to 3,000 B.C., and some of the tombs of noble people buried in Xinjiang region of China and Siberia around 2500 B.C. have included large quantities of mummified psychoactive marijuana. Both hemp and psychoactive marijuana were used widely in ancient China, Warf wrote. The first record of the drug's medicinal use dates to 4000 B.C. The herb was used, for instance, as an anaesthetic during surgery, and stories say it was even used by the Chinese Emperor Shen Nung in 2737 B.C. (However, whether Shen Nung was a real or a mythical figure has been debated, as the first emperor of a unified China was born much later than the supposed Shen Nung.)