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?
Sentence (from "House Rabbit Society"): The House Rabbit Society (HRS) is a non-profit activist organization based in Richmond, California, United States (US), that rescues and adopts rabbits and educates the community with its curriculum on rabbit care.
Relevant evidence: No