In Wisconsin v. Yoder, the Supreme Court ruled that Wisconsin violated the Free Exercise Clause of the First Amendment by compelling Amish parents to send their children to public school past the eighth grade, even though it was against their religious beliefs to do so. The Court held that the state's interest in compulsory education did not outweigh the parents' right to freely exercise their religion, and that forcing the children to attend school past the eighth grade would substantially burden the Amish parents' religious beliefs.
