The Edmunds Anti-Polygamy Act of 1882 does not violate the Free Exercise Clause of the First Amendment even though polygamy is part of several religious beliefs. Decided February 3, 1890 (argued 1889). Opinion of the Court: Stephen Johnson Field → go there Topic: Freedom of religion. Davis v. Beason, 133 U.S. 333 (1890), was a United States Supreme Court case affirming, by a 9–0 vote, that federal laws against polygamy did not conflict with the Free Exercise Clause of the First Amendment to the United States Constitution. Wiki link