Question: American Atheists is a non-profit activist organization in the United States, the organization was founded by Madalyn Murray O'Hair, in which year?

Related documents: [0]  [DOC] Madalyn Murray O'Hair ("née" Mays; April 13, 1919 – September 29, 1995), who also used multiple pseudonyms (her most preferred being M. Bible), was an American activist, founder of American Atheists, and the organization's president from 1963 to 1986. She created the first issues of "American Atheist Magazine". One of her sons, Jon Garth Murray, became the nominal president of the organization from 1986 to 1995, but she remained "de facto" president during these nine years. [END] 
[1]  [DOC] American Atheists is a non-profit activist organization in the United States dedicated to defending the civil liberties of atheists and advocating for the complete separation of church and state. It provides speakers for colleges, universities, clubs and the news media. It also publishes books and the quarterly "American Atheist Magazine", currently edited by Pamela Whissel. The organization was founded by Madalyn Murray O'Hair in 1963, following her role in removing mandatory prayer from public schools. [END]  
Answer: 1963
1963