McCreary County v. American Civil Liberties Union of Kentucky

McCreary and Pulaski Counties (defendants) posted the Ten Commandments on their courthouse walls; the ACLU of Kentucky (plaintiff) sued, alleging an Establishment Clause violation. Before the district court ruled, the counties twice expanded the display, first surrounding it with other religious-themed historical documents and declaring the Commandments their "precedent legal code," and later adding secular historical and political documents in what they called the "Foundations of American Law and Government Exhibit." The district court found all three versions had a religious purpose and violated the Establishment Clause, and the court of appeals affirmed.