| Term | Definition |
| Reynolds v. U.S. (1879) | Polygamy unconstitutional |
| Wisconsin v. Yoder (1972) | Amish cannot be forced to attend school after eighth grade |
| Employment Division of Oregon v. Smith (1990) | Oregon law can deny unemployment benefits to workers fire due to their use of illegal peyote drug |
| Church of Lukumi Babalu Aye v. City of Hialeah (1993) | Laws banning animal sacrifices unconstitutional (Santeria) |
| City of Boerne v. Flores (1997) | Religious Freedom Resoration Act (RFRA) unconstitutional |
| Free Exercise Clause | Right to practice any/no religion; belief is absolute; practices maybe restricted if conflicting with criminal laws |
| Religious Freedom Restoration Act (RFRA) | Prevents laws substantially burdening a person's free exercise to religion if "generally acceptable" |