The State of Tennessee v. John Thomas Scopes, commonly known as the Scopes trial or Scopes Monkey Trial, was an American legal case from July 10 to July 21, 1925, in which a high school teacher, John T. Scopes, was accused of violating the Butler Act, a Tennessee state law which outlawed the teaching of human evolution in public schools. The trial was deliberately staged in order to attract publicity to the small town of Dayton, Tennessee, where it was held.