William Griffith Wilson (November 26, 1895 – January 24, 1971), also known as Bill Wilson or Bill W. was co-founder of AA (Alcoholics Anonymous), an international fellowship with over two million members worldwide. The goal of AA is alcoholics helping other alcoholics achieve and maintain sobriety. In following AA's Twelfth Tradition of anonymity, Wilson is commonly known as "Bill W." or "Bill." After Wilson's death in 1971, his full name was included in obituaries.