<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The legal history of cannabis in the United States relates to the regulation of cannabis (legal term marijuana) use for medical, recreational or industrial purposes in the United States . Increased restrictions and labeling of cannabis as a poison began in many states from 1906 onward, and outright prohibitions began in the 1920s . By the mid-1930s marijuana was regulated as a drug in every state, including 35 states that adopted the Uniform State Narcotic Drug Act . The first national regulation was the Marihuana Tax Act of 1937 . </P> <P> Multiple efforts to reschedule cannabis under the Act have failed, and the United States Supreme Court has ruled in United States v. Oakland Cannabis Buyers' Cooperative and Gonzales v. Raich that the federal government has a right to regulate and criminalize cannabis, even for medical purposes . </P>

When was weed made illegal in the united states
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