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Introduction of marijuana into Western medicine
Irish physician and assistant surgeon and professor of chemistry at the Medical College of Calcutta, William Brooke O'Shaughnessy, is credited with introducing the therapeutic use of cannabis to Western medicine in the 1930s. -
Harrison Act
Under the Harrison Act, the use of marijuana was considered a crime. -
Advertisement
An advertisement for cannabis americana distributed by a pharmacist in New York. -
Period: to
History of medical marijuana
Important events pertaining to medical marijuana -
Marijuana Tax Act
The United States banned cannabis in a federal law and 23 states outlawed use of marijuana. -
1970s to the 1980s
Six U.S. states' health departments performed studies on the use of medical cannabis. These are widely considered some of the most useful and pioneering studies on the subject -
Medical Marijuana debate ignites, again
Physician Tod H. Mikuriya reignited the debate concerning cannabis as medicine when he published "Marijuana Medical Papers". -
California is first state to legalize marijuana
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Maryland adjusts medical marijuana laws
This law requires the court to consider a defendant's use of medical marijuana to be a mitigating factor in marijuana-related state prosecution. If the patient, post-arrest, successfully makes the case at trial that his or her use of marijuana is one of medical necessity, then the maximum penalty allowed by law would be a $100 fine. -
Federal regulation lightens
Attorney General relaxes punishment fpr medical marijuana-users.
