The Marijuana, cannabis, or hemp plant is one of the oldest psychoactive plants known to humanity. Cannabis has become one of the most widespread and diversified of plants. It grows as a weed and is cultivated all over the world in a variety of climates and soils. Cannabis preparations have been used as remedies for thousands of years and the active ingredients of the hemp plant can be put to use in a multitude of medical conditions. Marijuana has been used throughout history in many different cultures to change mood, perception, and consciousness - in other words, to get high. Its effects range from increasing creativity to provoking mystical experiences, to heightening the capacity to feel, sense and share.
Chinese people used marijuana as early as the 2700's B.C. People in India have long used it for pleasure, in ceremonies, and as a medicine. Marijuana has been used as an agent for achieving euphoria since ancient times; it was described in a Chinese medical compendium traditionally considered to date from 2737 B.C. Its use spread from China to India and then to N Africa and reached Europe at least as early as A.D. 500.
The first direct reference to a cannabis product as a psychoactive agent dates from 2700 BC, in the writings of the Chinese emperor Shen Nung. The focus was on its powers as a medication for rheumatism, gout, malaria, and oddly enough, absent-mindedness. Mention was made of the intoxicating properties, but the medicinal value was considered more important. In India though it was clearly used recreationally. The Muslims too used it recreationally for alcohol consumption was banned by the Koran. It was the Muslims who introduced hashish, whose popularity spread quickly throughout 12th century Persia (Iran) and North Africa
In 1545 the Spanish brought marijuana to the New World. The English introduced it in Jamestown in 1611 where it became a major commercial crop alongside tobacco and was grown as a source of fiber.
By 1890, hemp had been replaced by cotton as a major cash crop in southern states. Some patent medicines during this era contained marijuana, but it was a small percentage compared to the number containing opium or cocaine. It was in the 1920's that marijuana began to catch on. Some historians say its emergence was brought about by Prohibition. Its recreational use was restricted to jazz musicians and people in show business. "Reefer songs" became the rage of the jazz world. Marijuana clubs, called tea pads, sprang up in every major city. These marijuana establishments were tolerated by the authorities because marijuana was not illegal and patrons showed no evidence of making a nuisance of themselves or disturbing the community. Marijuana was not considered a social threat.
In June 2003 Canada became the first country in the world to offer medical marijuana to its patients.