Cannabis Timeline in Medicine
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Cannabis Timeline in Medicine 2900 BC - first recorded evidence of cannabis use in medicine 1500 BC - Chinese Pharmacopoeia recording of cannabis use in medicine 1621 - First recorded use of cannabis in treating depression 1850 - Cannabis indica added to US Pharmacopeia 1889 - Lancet article outlines use of cannabis for narcotic withdrawal 1937 - Marijuana Tax Act 1941 - Removal of cannabis from the Pharmacopeias