Traditions
A

Tradition · Oriental Orthodox

Armenian Apostolic Church

Followersabout 6–8 millionfaithful, church estimates (undated) · 2021How countedRoyal conversionc. 301–314King Trdat III is converted by Gregory the Illuminator. 301 is the traditional date; many historians prefer about 314.Read the historyCompare with another tradition

The church of the first kingdom to adopt Christianity officially, by tradition in 301.

Relationships with other traditions

Through the wider family

Divisions that concern the Oriental Orthodox family as a whole, not this church alone.

Since then

Key timeline

View full timeline (4)
  1. c. 301–314Traditional

    Conversion of the Armenian kingdom

    Gregory the Illuminator baptises King Trdat III; Christianity becomes the religion of the kingdom.

  2. c. 405

    The Armenian alphabet

    Mesrop Mashtots creates the alphabet, making possible an Armenian Bible and liturgy.

  3. 451 and after

    Non-reception of Chalcedon

    Armenian bishops were absent from Chalcedon; councils at Dvin in the 6th century formally rejected it.

Classification
Oriental Orthodox. The national church of the Armenian people, led by the Catholicos of All Armenians at Etchmiadzin.
What this entry covers
A self-governing church within a wider family. The Armenian Apostolic Church, including the Catholicosates of Etchmiadzin and Cilicia.
Royal conversion
c. 301–314. King Trdat III is converted by Gregory the Illuminator. 301 is the traditional date; many historians prefer about 314.

Relationships with other traditions

Explained on other pages

Through the wider family

These concern the family of churches this tradition belongs to, not this church alone.

Full timeline

  1. c. 301–314Traditional

    Conversion of the Armenian kingdom

    Gregory the Illuminator baptises King Trdat III; Christianity becomes the religion of the kingdom.

  2. c. 405

    The Armenian alphabet

    Mesrop Mashtots creates the alphabet, making possible an Armenian Bible and liturgy.

  3. 451 and after

    Non-reception of Chalcedon

    Armenian bishops were absent from Chalcedon; councils at Dvin in the 6th century formally rejected it.

    Explained in Coptic Orthodox Church: The Council of Chalcedon and its aftermath

  4. 1915

    Genocide

    The Armenian genocide in the Ottoman Empire destroys much of the church’s life in Anatolia. In 2015 the church canonised the victims as martyrs.

Positions used in comparisons

Short, sourced statements that the Atlas compares across traditions. Where a tradition has no single teaching authority, the record says whose statement it follows.

God
Shared Oriental Orthodox faith in the Holy Trinity.
Source

Provisional: broadly supported, but awaiting fuller checking.

Oriental Orthodox family position, as stated in the 1990 agreed statement.

Christ
One united nature of the incarnate Word, fully divine and fully human.
2 sources

Oriental Orthodox family position, as stated in the 1990 agreed statement.

Creeds and councils
Receives the first three ecumenical councils and does not accept Chalcedon (451), whose Christology an Armenian synod rejected in 506.
2 sources

Oriental Orthodox family position.

Mary and the saints
Mary is honoured as Theotokos.
Source

Provisional: broadly supported, but awaiting fuller checking.

Oriental Orthodox family position.

Compare these positions with another tradition

  • Badarak

    The Divine Liturgy (Badarak) is sung in Classical Armenian. Christmas and Theophany are celebrated together on 6 January.
    Source

    The 6 January feast is checked; the Classical Armenian Badarak is not sourced.

    Provisional: broadly supported, but awaiting fuller checking.

The follower figure

about 6–8 million faithful, church estimates (undated)

What is counted
Estimate supplied by or for the church; date and method not stated
As of
Undated estimates (CNEWA page last modified 2021; WCC profile)
Reported by
CNEWA (Roberson); World Council of Churches member profile
Type
Estimate
Coverage
Armenia and the diaspora, both catholicosates. In Armenia's 2011 census 92% of the population identified with the church.
This entry is
A self-governing church within a wider family. The Armenian Apostolic Church, including the Catholicosates of Etchmiadzin and Cilicia.
CNEWA gives about 5 million faithful under Etchmiadzin and 800,000 under Cilicia (6 million in all); the World Council of Churches' profile lists 8,023,000. Neither figure is dated or explains its method.
2 sources

Provisional: broadly supported, but awaiting fuller checking.

Replaces the starting figure. Workbook: 9,000,000 (no source or date).

Figures from different traditions measure different things and must not be added together or ranked against each other.

About the image · Editorial placeholder

Editorial initial. A documented Armenian cross form (e.g. from a khachkar) could replace this later.

Editorial status

Editorial draft. Built from the starting workbook with editorial corrections and framing. It has not yet been checked against independent sources.

References

  • Workbook linkNot yet checked

    armenianchurch.org

    Link supplied in the source workbook (“Christian Denominations”, row 16). It has not been checked to confirm that it supports every claim in that row.

Original workbook record

Imported unchanged from “Christian Denominations”, row 16. Values here are the starting dataset, not verified facts; where the Atlas differs, the reason is noted below.

Denomination / Tradition
Armenian Apostolic Church
Broader Tradition
Oriental Orthodoxy
Date Established / Split
301 AD / 451 AD
Origin / Location
Etchmiadzin, Armenia
Forming Event / Schism
Council of Chalcedon Schism
Approx. Practitioners
9,000,000
Broke Away From
Unified Early Church
Primary Reason for Split / Core Doctrine
Absence from Council of Chalcedon due to Persian wars; rejected Chalcedonian Christology for Miaphysite theology.
Reference / Information Link
https://www.armenianchurch.org

Editorial notes on this record

  • Date Established / Split: “301 AD / 451 AD” mixes the traditional conversion date (itself disputed: c. 301–314) with Chalcedon, which Armenia did not attend.
  • Forming Event / Schism: “Council of Chalcedon Schism” — Armenian rejection was formalised later, at Dvin, rather than in 451.

Research sources for this entry

Every relationship, position and figure above cites these. Each links to the Atlas’s single source register, which shows what each source supports and whether it was read.