California first state to legalize medical Marijuana (4h 2min, jan 1, 1996 y – 6h 47min, jan 10, 1997 y)
In 1996, California was the first state to legalize medical cannabis, sparking a trend that spread across most other US states. https://en.wikipedia.org/wiki/Timeline_of_cannabis_laws_in_the_United_States
Added to timeline:
History of drug use in America Timeline
A historical timeline of drug use in American culture and hi...