Teaching creationism in public schools is unconstitutional. Decided June 19, 1987 (argued December 10, 1986). Opinion of the Court: William J. Brennan → go there Dissenting: Scalia. Applied: the First Amendment → go there Topic: Freedom of religion. Edwards v. Aguillard, 482 U.S. 578 (1987), was a United States Supreme Court case concerning the constitutionality of teaching creationism. The Court considered a Louisiana law requiring that where evolutionary science was taught in public schools, creation science must also be taught. The constitutionality of the law was successfully challenged in District Court, Aguillard v. Treen, 634 F. Supp. 426, and the United States Court of Appeals for the Fifth Circuit affirmed, Aguillard v. Edwards, 765 F.2d 1251. The United States Supreme Court ruled that this law violated the Establishment Clause of the First Amendment because the law was specifically intended to advance a particular religion. In its decision, the court opined that "teaching a variety of scientific theories about the origins of humankind to school children might be validly done with the clear secular intent of enhancing the effectiveness of science instruction." Wiki link