High Quality Content by WIKIPEDIA articles! Cannabis is a genus of flowering plants with species that have long been used for fiber (hemp), for medicinal purposes, and as a recreational drug. Industrial hemp products are made from cannabis plants selected to produce an abundance of fiber and minimal levels of tetrahydrocannabinol, a psychoactive molecule that produces the "high" associated with marijuana. For more than half of the history of the United States cannabis was used primarily for industrial purposes, and at times was even required by law to be grown out of "strategic necessity". Domestic production continued until after the Civil War, while marijuana remained a common ingredient in medicines up to the 20th century. Following immigration caused by the Mexican Revolution, recreational use of marijuana became widespread, resulting in political pressure to enact a federal ban of cannabis. While the attitude of the general public towards marijuana has changed throughout the...

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