The Butler Act was a law passed in 1925 in the state of Tennessee. It made it illegal to teach the theory of evolution in public schools, specifically targeting the teachings of Charles Darwin. The act was part of a broader movement to promote creationism and restrict the teaching of scientific theories that contradicted religious beliefs. The Butler Act gained national attention when it led to the famous Scopes Trial in 1925. This trial pitted the teaching of evolution against traditional religious views, highlighting the conflict between science and religion in American education. The act was eventually repealed, but it remains a significant moment in the history of education and science in the United States.