Orthodox~1054 (Great Schism formalised)
Eastern Orthodox
📍 Byzantine Empire (Constantinople, Antioch, Alexandria)
Ancient Christianity preserved in the East. Deep liturgy, icons, and theosis.
Learn moreFree Resource
Denomination Explorer
Christianity is not one tradition. It is a family shaped by centuries of faith, geography, and the many ways people have met God. Explore the full family here. All branches. No judgment.
Orthodox~42 AD
Coptic Orthodox
📍 Alexandria, Egypt
Egypt's ancient apostolic church, founded by the Apostle Mark.
Learn moreOrthodox~301 AD (state church)
Armenian Apostolic
📍 Armenia (modern Turkey/Armenia)
The world's oldest national church, founded by Apostles Thaddeus and Bartholomew.
Learn moreOrthodox~37 AD (Antioch); Jacobite identity ~543 AD
Syriac Orthodox (Jacobite)
📍 Antioch, Syria
Ancient Aramaic church tracing origins to Antioch and the Apostle Peter.
Learn moreOrthodox~1st–2nd century AD
Church of the East (Assyrian)
📍 Mesopotamia (modern Iraq and Iran)
The ancient Eastern church of Mesopotamia - Christianity in the Persian Empire.
Learn moreOrthodox~330 AD (state church)
Ethiopian Orthodox Tewahedo
📍 Axum, Ethiopia
Africa's ancient apostolic church - 81-book canon, Ge'ez liturgy, and the Ark of the Covenant.
Learn moreOrthodox1666–1667 (Great Schism from Russian Orthodoxy)
Old Believers (Raskolniki)
📍 Russia
Preserving the pre-Nikonian Russian Orthodox rites against all reform.
Learn moreOrthodox~52 AD (apostolic tradition); reformed 1836
Mar Thoma Church (Thomas Christians)
📍 Kerala, India
St Thomas's ancient Indian church meets the Protestant Reformation.
Learn moreOrigin
The Armenian Apostolic Church claims apostolic founding through Thaddeus and Bartholomew in the 1st century. Armenia became the first nation to adopt Christianity as its state religion in 301 AD under King Tiridates III, following the missionary work of Gregory the Illuminator. It is Oriental Orthodox, rejected Chalcedon in 451 AD, and the Armenian alphabet was created partly to translate Scripture.
Core beliefs
- Miaphysite Christology (one united nature of Christ)
- Apostolic succession from Thaddeus and Bartholomew
- Seven sacraments
- Intercession of saints and veneration of the Theotokos
- Strong national-religious identity
Worship style
Ancient liturgical Divine Liturgy (Badarak) in Classical Armenian (Grabar). Deep use of sacred music, incense, and icons. Distinct liturgical calendar and one of Christianity's most extensive fasting traditions.
Key scriptures
- John 1:1–14
- Colossians 1:15–20
- Acts 2:38–41
- Matthew 28:19–20
Relationship to other denominations
Part of the Oriental Orthodox communion alongside Coptic, Ethiopian, Syriac, and Malankara churches. Historical ecumenical relationships with Eastern Orthodox and Rome.