The history of cannabis in the United States is a complex journey shaped by shifting social attitudes, political movements, and evolving laws. From early 20th-century prohibition to the sweeping legalization efforts of the 21st century, cannabis policy has reflected broader debates about medicine, criminal justice, and individual freedom. This timeline traces key moments in U.S. cannabis history—highlighting landmark legislation, court rulings, and cultural turning points that have shaped how the country views and regulates the plant today.
This is a work in progress.
Alabama - May 17, 2021
On May 17, 2021, Governor Kay Ivey signed Senate Bill 46—the Darren Wesley "Ato" Hall Compassion Act—into law, legalizing medical cannabis. The law prohibits sales of raw cannabis and edible products like cookies or candies.
Alabama - April 1, 2014
Governor Robert Bentley signs Carly's Law, permitting the University of Alabama at Birmingham to provide non-psychoactive CBD oil to children with debilitating seizures as a clinical study.