Drug Abuse Prevention and Control Act (21h 31min, oct 27, 1970 y – 0h 15min, jan 10, 1971 y)
Congress passes the Comprehensive Drug Abuse Prevention and Control Act, which reduces the penalty for marijuana possession but gives law enforcement new powers to conduct drug-related searches. https://www.shmoop.com/drugs-america/timeline.html
Added to timeline:
History of drug use in America Timeline
A historical timeline of drug use in American culture and hi...