Resource: McCreary County v. American Civil Liberties Union of Ky.

The American Civil Liberties Union (ACLU) sued three Kentucky counties in federal district court for displaying framed copies of the Ten Commandments in courthouses and public schools. The ACLU argued the displays violated the First Amendment's establishment clause, which prohibits the government from passing laws "respecting an establishment of religion." The district court and the Sixth Circuit Court of Appeals ruled the displays violated the establishment clause.