1915-1927 – 10 States Pass Marijuana Prohibition Laws

“[In 1915] Utah passes state anti-marijuana law…

Other states quickly followed suit with marijuana prohibition laws, including Wyoming (1915), Texas (1919), Iowa (1923), Nevada (1923), Oregon (1923), Washington (1923), Arkansas (1923), and Nebraska (1927).” The state of New York outlaws cannabis in 1927.”