States may not require curricula to align with the views of any particular religion. Decided November 12, 1968 (argued October 16, 1968). Opinion of the Court: Abe Fortas → go there Applied: the First Amendment → go there Applied: the Fourteenth Amendment → go there Topic: Freedom of religion. Epperson v. Arkansas, 393 U.S. 97 (1968), is a unanimous landmark United States Supreme Court case that invalidated an Arkansas statute prohibiting the teaching of human evolution in the public schools. The Court held that the First Amendment to the United States Constitution prohibits a state from requiring, in the words of the majority opinion, "that teaching and learning must be tailored to the principles or prohibitions of any religious sect or dogma." The Supreme Court declared the Arkansas statute unconstitutional because it violated the Establishment Clause of the First Amendment. After this decision, some jurisdictions passed laws that required the teaching of creation science alongside evolution when evolution was taught. The Court also ruled these laws were unconstitutional in the 1987 case, Edwards v. Aguillard. Wiki link