A historical and descriptive introduction. Local practice varies; the examples below are not a judgment of a community’s faithfulness.
When and how it began
Eastern Orthodoxy developed within early Christian communities of the eastern Mediterranean. Separation from Rome unfolded over centuries; 1054 and the sack of Constantinople in 1204 are landmarks, not founding dates.
Beliefs and practices
Emphasis falls on the Trinity, Christ’s incarnation and resurrection, sacramental life, fasting, and transformation through communion with God. Self-governing churches share a liturgical and doctrinal inheritance; there is no universal Orthodox pope.
A typical worship service
The Divine Liturgy includes chanted prayers, Scripture, and Eucharist. Incense, processions, and considerable standing are common. Communion is ordinarily reserved for prepared Orthodox Christians.
What the worship space looks like
Icons and an icon screen often shape the sanctuary. Some churches have pews; others leave more standing space.
Branches and differences
Greek, Russian, Antiochian, Romanian, Serbian, and other churches belong to this family. Language and customs differ. Eastern Orthodoxy and Oriental Orthodoxy are distinct communions.
Sources & further reading
Historical overviews support the account of origins. Official church documents describe the community’s own beliefs and practice.
- World Council of Churches · historical overview ↗
- Orthodox Church in America · Receiving Communion ↗
- Historical context · East–West separation ↗
Reviewed September 24, 2026. Broad family descriptions do not settle local policies or every contested point of history.