On this date, the highly orchestrated arrest (but not detention) of John T. Scopes took place. The Tennessee legislature had earlier passed the Butler Act, which declared:
… that it shall be unlawful for any teacher in any of the Universities, Normals and all other public schools of the State which are supported in whole or in part by the public school funds of the State, to teach any theory that denies the story of the Divine Creation of man as taught in the Bible, and to teach instead that man has descended from a lower order of animals.
As a reaction to this, the American Civil Liberties Union had offered to defend anyone who so dared to teach evolution in Tennessee. Some local business owners in Dayton thought that their town might be able to get some easy publicity if they were able to come up with someone who they could say violated the Butler Act. Scopes had volunteered, and ultimately he was charged with teaching evolution to a high school class.