High Quality Content by WIKIPEDIA articles! The recent history of Cannabis in California comprises a number of legislative, legal, and cultural events surrounding use of marijuana, hashish, and cannabis. California was the first state to establish a medical marijuana program, enacted by Proposition 215 in 1996 and Senate Bill 420 in 2003. Prop. 215, also known as the Compassionate Use Act, was approved by initiative with a 55% majority, allowing people with cancer, AIDS and other chronic illnesses the right to grow or obtain marijuana for medical purposes when recommended by a doctor. SB 420, or the Medical Marijuana Protection Act, was signed into law by Governor Gray Davis and established an identification card system for medical marijuana patients.