William Griffith Wilson (November 26, 1895 – January 24, 1971), also known as Bill Wilson or Bill W., was an American businessman who co-conceived and co-founded Alcoholics Anonymous (AA), with fellow co-founder Bob Smith. AA is an international mutual aid fellowship with about two million members worldwide belonging to AA groups, associations, organizations, cooperatives, and fellowships of alcoholics helping other alcoholics achieve and maintain sobriety. Following AA's Twelfth Tradition of anonymity, within the organization Wilson is commonly known as "Bill W." or "Bill". After his death, with his prior written permission, his full name was included in obituaries. Wilson's sobriety from alcohol, which he maintained until his death, began December 11, 1934. In 1955, he turned over control of AA to a board of trustees. He died in 1971, and in 1999 Time listed him as "Bill W.: The Healer" in the Time 100: The Most Important People of the Century. Source: Wikipedia (en)