Roman Catholic and Orthodox churches: Branches, Schisms, and Heresies
- Assyrian Church
- Byzantine Rite
- Catholic Church
- Celtic Church
- Eastern Church
- Gallicanism
- Great Schism
- Greek Church
- Jansenism
- Maronites
- Melchites
- Melkites
- Mozarabs
- Old Catholics
- Orthodox Eastern Church
- Philippine Independent Church
- Robber Synod
- Roman Catholic Church
- Rosminians
- Russian Church
- Russian Orthodox Church
- Ultramontanism
- Uniates
Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-