
In the
history of Christianity
The history of Christianity began with the life of Jesus, an itinerant Jewish preacher and teacher, who was Crucifixion of Jesus, crucified in Jerusalem . His followers proclaimed that he was the Incarnation (Christianity), incarnation of Go ...
, the first seven ecumenical councils include the following: the
First Council of Nicaea
The First Council of Nicaea ( ; ) was a council of Christian bishops convened in the Bithynian city of Nicaea (now İznik, Turkey) by the Roman Emperor Constantine I. The Council of Nicaea met from May until the end of July 325.
This ec ...
in 325, the
First Council of Constantinople
The First Council of Constantinople (; ) was a council of Christian bishops convened in Constantinople (now Istanbul, Turkey) in AD 381 by the Roman Emperor Theodosius I. This second ecumenical council, an effort to attain consensus in the ...
in 381, the
Council of Ephesus in 431, the
Council of Chalcedon in 451, the
Second Council of Constantinople
The Second Council of Constantinople is the fifth of the first seven ecumenical councils recognized by both the Eastern Orthodox Church and the Catholic Church. It is also recognized by the Old Catholics and others. Protestant opinions and re ...
in 553, the
Third Council of Constantinople from 680 to 681 and finally, the
Second Council of Nicaea
The Second Council of Nicaea is recognized as the last of the first seven ecumenical councils by the Eastern Orthodox Church and the Catholic Church. In addition, it is also recognized as such by Old Catholic Church, Old Catholics and others. ...
in 787. All of the seven councils were convened in what is now the country of
Turkey
Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...
.
These seven events represented an attempt by Church leaders to reach an
orthodox consensus, restore peace and develop a unified
Christendom. Among
Eastern Christians the
Eastern Orthodox
Eastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main Branches of Christianity, branches of Chalcedonian Christianity, alongside Catholic Church, Catholicism and Protestantism ...
,
Oriental Orthodox
The Oriental Orthodox Churches are Eastern Christianity, Eastern Christian churches adhering to Miaphysitism, Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian ...
, and
Church of the East
The Church of the East ( ) or the East Syriac Church, also called the Church of Seleucia-Ctesiphon, the Persian Church, the Assyrian Church, the Babylonian Church, the Chaldean Church or the Nestorian Church, is one of three major branches o ...
(Assyrian) churches and among
Western Christians the
Roman Catholic
The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
,
Anglican
Anglicanism, also known as Episcopalianism in some countries, is a Western Christianity, Western Christian tradition which developed from the practices, liturgy, and identity of the Church of England following the English Reformation, in the ...
,
Utrecht
Utrecht ( ; ; ) is the List of cities in the Netherlands by province, fourth-largest city of the Netherlands, as well as the capital and the most populous city of the Provinces of the Netherlands, province of Utrecht (province), Utrecht. The ...
and
Polish National Old Catholic, and some Scandinavian
Lutheran
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
churches all trace the legitimacy of their clergy by
apostolic succession
Apostolic succession is the method whereby the Christian ministry, ministry of the Christian Church is considered by some Christian denominations to be derived from the Twelve Apostles, apostles by a continuous succession, which has usually been ...
back to this period and beyond, to the earlier period referred to as the
Early Church
Early Christianity, otherwise called the Early Church or Paleo-Christianity, describes the historical era of the Christian religion up to the First Council of Nicaea in 325. Christianity spread from the Levant, across the Roman Empire, and bey ...
.
This era begins with the First Council of Nicaea in AD 325, convened by the emperor
Constantine I
Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a Constantine the Great and Christianity, pivotal ro ...
following his victory over
Licinius
Valerius Licinianus Licinius (; Ancient Greek, Greek: Λικίνιος; c. 265 – 325) was Roman emperor from 308 to 324. For most of his reign, he was the colleague and rival of Constantine I, with whom he co-authored the Edict of Milan that ...
and consolidation of his reign over the Roman Empire. Nicaea I enunciated the
Nicene Creed
The Nicene Creed, also called the Creed of Constantinople, is the defining statement of belief of Nicene Christianity and in those Christian denominations that adhere to it.
The original Nicene Creed was first adopted at the First Council of N ...
that in its
original form and as
modified by the First Council of Constantinople of 381 was seen by all later councils as the touchstone of
orthodoxy
Orthodoxy () is adherence to a purported "correct" or otherwise mainstream- or classically-accepted creed, especially in religion.
Orthodoxy within Christianity refers to acceptance of the doctrines defined by various creeds and ecumenical co ...
on the doctrine of the
Trinity
The Trinity (, from 'threefold') is the Christian doctrine concerning the nature of God, which defines one God existing in three, , consubstantial divine persons: God the Father, God the Son (Jesus Christ) and God the Holy Spirit, thr ...
.
The Eastern Orthodox and Roman Catholic Churches accept all seven of these councils as legitimate
ecumenical council
An ecumenical council, also called general council, is a meeting of bishops and other church authorities to consider and rule on questions of Christian doctrine, administration, discipline, and other matters in which those entitled to vote are ...
s. The
Non-Chalcedonian Oriental Orthodox Churches accept only the first three, while the Non-Ephesian Church of the East accepts only the first two. There is also one additional council, the so-called
Quinisext Council of Trullo held in AD 692 between the sixth and seventh ecumenical councils, which issued organizational, liturgical and
canonical rules but did not discuss theology. Only within Eastern Orthodoxy is its authority commonly considered ecumenical; however, the Orthodox do not number it among the seven general councils, but rather count it as a continuation of the fifth and sixth. The Roman Catholic Church does not accept the Quinisext Council, but both the
Roman magisterium as well as a minority of Eastern Orthodox hierarchs and theological writers consider there to have been further ecumenical councils after the first seven (see the
Fourth Council of Constantinople,
Fifth Council of Constantinople, and fourteen additional
post-schism ecumenical councils canonical for Catholics).
The councils
These seven ecumenical councils are:
First Council of Nicaea (325)
Emperor Constantine convened this council to settle a controversial issue, the relation between
Jesus Christ
Jesus (AD 30 or 33), also referred to as Jesus Christ, Jesus of Nazareth, and many Names and titles of Jesus in the New Testament, other names and titles, was a 1st-century Jewish preacher and religious leader. He is the Jesus in Chris ...
and
God the Father
God the Father is a title given to God in Christianity. In mainstream trinitarian Christianity, God the Father is regarded as the first Person of the Trinity, followed by the second person, Jesus Christ the Son, and the third person, God th ...
. The Emperor wanted to establish universal agreement on it. Representatives came from across the Empire, subsidized by the Emperor. Previous to this council, the bishops would hold local councils, such as the
Council of Jerusalem
The Council of Jerusalem or Apostolic Council is a council described in chapter 15 of the Acts of the Apostles, held in Jerusalem .
The council decided that Gentiles who converted to Christianity were not obligated to keep most of the rule ...
, but there had been no universal, or ecumenical, council.
The council drew up a creed, the
original Nicene Creed, which received nearly unanimous support. The council's description of "God's only-begotten Son",
Jesus Christ
Jesus (AD 30 or 33), also referred to as Jesus Christ, Jesus of Nazareth, and many Names and titles of Jesus in the New Testament, other names and titles, was a 1st-century Jewish preacher and religious leader. He is the Jesus in Chris ...
, as of the
same substance with
God the Father
God the Father is a title given to God in Christianity. In mainstream trinitarian Christianity, God the Father is regarded as the first Person of the Trinity, followed by the second person, Jesus Christ the Son, and the third person, God th ...
became a touchstone of Christian
Trinitarianism
The Trinity (, from 'threefold') is the Christian doctrine concerning the nature of God, which defines one God existing in three, , consubstantial divine persons: God the Father, God the Son (Jesus Christ) and God the Holy Spirit, three ...
. The council also addressed the issue of dating Easter (see
Quartodecimanism and
Easter controversy), recognised the right of the
See of Alexandria to jurisdiction outside of its own province (by analogy with the jurisdiction exercised by Rome) and the prerogatives of the churches in Antioch and the other provinces and approved the custom by which
Jerusalem
Jerusalem is a city in the Southern Levant, on a plateau in the Judaean Mountains between the Mediterranean Sea, Mediterranean and the Dead Sea. It is one of the List of oldest continuously inhabited cities, oldest cities in the world, and ...
was honoured, but without the metropolitan dignity.
The Council was opposed by the
Arians, and Constantine tried to reconcile
Arius
Arius (; ; 250 or 256 – 336) was a Cyrenaica, Cyrenaic presbyter and asceticism, ascetic. He has been regarded as the founder of Arianism, which holds that Jesus Christ was not Eternity, coeternal with God the Father, but was rather created b ...
, after whom Arianism is named, with the Church. Even when Arius died in 336, one year before the death of Constantine, the controversy continued, with various separate groups espousing Arian sympathies in one way or another.
["Arianism." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: ]Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford. It is the largest university press in the world. Its first book was printed in Oxford in 1478, with the Press officially granted the legal right to print books ...
. 2005 In 359, a double council of Eastern and Western bishops affirmed a formula stating that the Father and the Son were similar in accord with the scriptures, the crowning victory for Arianism.
The opponents of Arianism rallied, and the First Council of Constantinople in 381 marked the final victory of Nicene orthodoxy within the Empire, though Arianism had by then spread to the Germanic tribes, among whom it gradually disappeared after the conversion of the
Franks
file:Frankish arms.JPG, Aristocratic Frankish burial items from the Merovingian dynasty
The Franks ( or ; ; ) were originally a group of Germanic peoples who lived near the Rhine river, Rhine-river military border of Germania Inferior, which wa ...
to Christianity in 496.
Constantine commissions Bibles
In 331,
Constantine I
Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a Constantine the Great and Christianity, pivotal ro ...
commissioned
Eusebius to deliver fifty Bibles for the
Church of Constantinople
The Ecumenical Patriarchate of Constantinople (, ; ; , "Roman Orthodox Patriarchate, Ecumenical Patriarchate of Istanbul") is one of the fifteen to seventeen Autocephaly, autocephalous churches that together compose the Eastern Orthodox Church. ...
.
Athanasius (''Apol. Const. 4'') recorded Alexandrian scribes around 340 preparing Bibles for
Constans. Little else is known, though there is plenty of speculation. For example, it is speculated that this may have provided motivation for
canon lists, and that
Codex Vaticanus and
Codex Sinaiticus are examples of these Bibles. Together with the
Peshitta
The Peshitta ( ''or'' ') is the standard Syriac edition of the Bible for Syriac Christian churches and traditions that follow the liturgies of the Syriac Rites.
The Peshitta is originally and traditionally written in the Classical Syriac d ...
and
Codex Alexandrinus, these are the earliest extant Christian Bibles.
First Council of Constantinople (381)
The council approved the current form of the
Nicene Creed
The Nicene Creed, also called the Creed of Constantinople, is the defining statement of belief of Nicene Christianity and in those Christian denominations that adhere to it.
The original Nicene Creed was first adopted at the First Council of N ...
used in most
Oriental Orthodox
The Oriental Orthodox Churches are Eastern Christianity, Eastern Christian churches adhering to Miaphysitism, Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian ...
churches. The
Eastern Orthodox Church
The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is List of Christian denominations by number of members, one of the three major doctrinal and ...
uses the council's text but with the verbs expressing belief in the singular: Πιστεύω (I believe) instead of Πιστεύομεν (We believe). The
Catholic Church
The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
's
Latin Church
The Latin Church () is the largest autonomous () particular church within the Catholic Church, whose members constitute the vast majority of the 1.3 billion Catholics. The Latin Church is one of 24 Catholic particular churches and liturgical ...
and
its liturgies also use the singular and, except in
Greek, adds two phrases, ''Deum de Deo'' (God from God) and ''Filioque'' (and the Son). The form used by the
Armenian Apostolic Church
The Armenian Apostolic Church () is the Autocephaly, autocephalous national church of Armenia. Part of Oriental Orthodoxy, it is one of the most ancient Christianity, Christian churches. The Armenian Apostolic Church, like the Armenian Catholic ...
, which is part of
Oriental Orthodoxy
The Oriental Orthodox Churches are Eastern Christian churches adhering to Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian tradition. Oriental Orthodoxy is ...
, has many more additions. This fuller creed may have existed before the Council and probably originated from the baptismal creed of Constantinople.
The council also condemned
Apollinarism,
["Constantinople, First Council of." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005] the teaching that there was no human mind or soul in Christ. It also granted Constantinople honorary precedence over all churches save Rome.
The council did not include Western bishops or Roman legates, but it was later accepted as ecumenical in the West.
First Council of Ephesus (431)
Theodosius II
Theodosius II ( ; 10 April 401 – 28 July 450), called "the Calligraphy, Calligrapher", was Roman emperor from 402 to 450. He was proclaimed ''Augustus (title), Augustus'' as an infant and ruled as the Eastern Empire's sole emperor after the ...
called the council to settle the
Christological controversy surrounding
Nestorianism
Nestorianism is a term used in Christian theology and Church history to refer to several mutually related but doctrinary, doctrinarily distinct sets of teachings. The first meaning of the term is related to the original teachings of Christian t ...
. Nestorius, Patriarch of Constantinople, declared the use of the term ''
Theotokos'' (Greek: Ἡ Θεοτόκος, "God-Bearer") to be insufficient, preferring to use ''Christokos''.
["Nestorius." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005] This term had been in use by the early church prior to the outbreak of this controversy.
Nestorius affirmed that Christ is in two distinct, separate natures (hypostases) that persist after the union, in contrast to
Cyril of Alexandria
Cyril of Alexandria (; or ⲡⲓ̀ⲁⲅⲓⲟⲥ Ⲕⲓⲣⲓⲗⲗⲟⲥ; 376–444) was the Patriarch of Alexandria from 412 to 444. He was enthroned when the city was at the height of its influence and power within the Roman Empire ...
, who insisted on the unity of the two natures into one.
The council deposed Nestorius, repudiated
Nestorianism
Nestorianism is a term used in Christian theology and Church history to refer to several mutually related but doctrinary, doctrinarily distinct sets of teachings. The first meaning of the term is related to the original teachings of Christian t ...
, and proclaimed the Virgin
Mary as the
Theotokos.
After quoting the
Nicene Creed
The Nicene Creed, also called the Creed of Constantinople, is the defining statement of belief of Nicene Christianity and in those Christian denominations that adhere to it.
The original Nicene Creed was first adopted at the First Council of N ...
in its original form, as at the First Council of Nicaea, without the alterations and additions made at the First Council of Constantinople, it declared it "unlawful for any man to bring forward, or to write, or to compose a different (ἑτέραν) Faith as a rival to that established by the holy Fathers assembled with the
Holy Ghost in Nicæa."
Aftermath
Shortly after
Cyril
Cyril (also Cyrillus or Cyryl) is a masculine given name. It is derived from the Greek language, Greek name (''Kýrillos''), meaning 'lordly, masterful', which in turn derives from Greek (''kýrios'') 'lord'. There are various variant forms of t ...
's death, in November 448, a synod at Constantinople condemned Eutyches,
["Latrocinium." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005] an archimandrite (abbot) of a significant monastery near
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
, who taught that Christ was not
consubstantial with humanity as He had one divine nature that "consumed his humanity as the ocean consumes a drop of vinegar."
["Monophysitism." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005]
In 449, Theodosius II summoned a council at Ephesus, where Eutyches was exonerated and returned to his monastery.
This council was later overturned by the Council of Chalcedon and labeled "Latrocinium" (i.e., "Robber Council").
Council of Chalcedon (451)

The council repudiated the
Eutychian doctrine of
monophysitism, described and delineated the "
Hypostatic Union" and
two natures of Christ, human and divine; adopted the
Chalcedonian Definition
The Chalcedonian Definition (also called the Chalcedonian Creed or the Definition of Chalcedon) is the declaration of the dyophysitism of Hypostatic union, Christ's nature, adopted at the Council of Chalcedon in AD 451. Chalcedon was an Early cen ...
. For those who accept it (Eastern Orthodox, Roman Catholics, and most Protestants), it is the Fourth Ecumenical Council (calling the
Second Council of Ephesus, which was rejected by this council, the "
Robber Synod" or "
Robber Council").
Aftermath
The
Miaphysite faction held another council at Ephesus, the
Third Council of Ephesus, in which it condemned the
Council of Chalcedon including the
Tome of Leo, in addition to
Eutychianism, and reaffirmed the
12 Anathemas of Saint Cyril. This was signed by 500-700 bishops.
Second Council of Constantinople (553)
This council condemned certain writings and authors which defended the Christology of Nestorius. This move was instigated by Emperor Justinian in an effort to conciliate the
Miaphysite Christians, which made up the majority of the east. It was opposed in the West, and the Popes' acceptance of the council caused a major schism.
["Constantinople, Second Council of." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005]
Three Chapters
Prior to the Second Council of Constantinople was a prolonged controversy over the treatment of three subjects, all considered sympathetic to Nestorianism, the heresy that there are two separate persons in the Incarnation of Christ. Emperor Justinian condemned the Three Chapters, hoping to appeal to
miaphysite Christians with his anti-Nestorian zeal.
["Three Chapters." Cross, F. L., ed. The Oxford dictionary of the Christian church. New York: Oxford University Press. 2005] Monophysites believe that in the Incarnate Christ there is only one nature (i.e. the divine) not two
while miaphysites believe that the two natures of Christ are united as one and are distinct in thought only.
Some eastern patriarchs supported the Emperor, but in the West his interference was resented, and Pope Vigilius resisted his edict on the grounds that it opposed the Chalcedonian decrees.
Justinian's policy was in fact an attack on Antiochene theology and the decisions of Chalcedon.
The pope assented and condemned the Three Chapters, but protests in the West caused him to retract his condemnation.
The emperor called the Second Council of Constantinople to resolve the controversy.
Council proceedings
The council, attended mostly by Eastern bishops, condemned the Three Chapters and, indirectly, the Pope Vigilius.
It also affirmed Constantinople's intention to remain in communion with Rome.
After the council
Vigilius declared his submission to the council, as did his successor,
Pope Pelagius I.
The council was not immediately recognized as ecumenical in the West, and Milan and Aquileia even broke off communion with Rome over this issue.
The schism was not repaired until the late 6th century for Milan and the late 7th century for Aquileia.
Ultimately, the council failed to reconcile the
Oriental Orthodox Churches
The Oriental Orthodox Churches are Eastern Christian churches adhering to Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian tradition. Oriental Orthodoxy is ...
, as it required acceptance of a two-nature formula that contradicted the decisions of the
Council of Ephesus. This included the deposition of
Dioscorus and
Severus, the Patriarchs of Alexandria and Antioch, respectively, as well as the veneration of figures still associated with Nestorianism, such as
Ibas of Edessa and
Theodore of Mopsuestia.
Third Council of Constantinople (680–681)
The
Third Council of Constantinople (680–681) mainly repudiated
monothelitism, a doctrine that had gained widespread support since its formulation in 638. The Council condemned both
monoenergism and
monothelitism as heretical, affirming that Christ possesses two energies and two wills — divine and human.
Quinisext Council
Quinisext Council (= Fifth-Sixth Council) or Council in
Trullo
A trullo (plural, trulli) is a Vernacular architecture, traditional Apulian dry stone hut with a conical roof. Their style of construction is specific to the Itria Valley, in the Murge area of the Italian region of Apulia. Trulli were generally ...
(692) has not been accepted by the Roman Catholic Church. Since it was mostly an administrative council for raising some local canons to ecumenical status, establishing principles of clerical discipline, addressing the
Biblical canon
A biblical canon is a set of texts (also called "books") which a particular Jewish or Christian religious community regards as part of the Bible.
The English word ''canon'' comes from the Ancient Greek, Greek , meaning 'ruler, rule' or 'measu ...
, without determining matters of doctrine, the
Eastern Orthodox Church
The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is List of Christian denominations by number of members, one of the three major doctrinal and ...
does not consider it to be a full-fledged council in its own right, viewing it instead as an extension of the fifth and sixth councils. It gave ecclesiastical sanction to the
Pentarchy as the government of the
state church of the Roman Empire
In the year before the First Council of Constantinople in 381, Nicene Christianity, Nicean Christianity became the official religion of the Roman Empire when Theodosius I, emperor of the East, Gratian, emperor of the West, and Gratian's junior co-r ...
.
Second Council of Nicaea (787)
Second Council of Nicaea
The Second Council of Nicaea is recognized as the last of the first seven ecumenical councils by the Eastern Orthodox Church and the Catholic Church. In addition, it is also recognized as such by Old Catholic Church, Old Catholics and others. ...
(787). In 753, Emperor Constantine V convened the
Synod of Hieria, which declared that images of Jesus misrepresented him and that images of Mary and the saints were idols. The Second Council of Nicaea restored the veneration of
icon
An icon () is a religious work of art, most commonly a painting, in the cultures of the Eastern Orthodox, Oriental Orthodox, Catholic Church, Catholic, and Lutheranism, Lutheran churches. The most common subjects include Jesus, Mary, mother of ...
s and ended the first
iconoclasm.
Subsequent events
In the 9th century, Emperor
Michael III
Michael III (; 9/10 January 840 – 24 September 867), also known as Michael the Drunkard, was Byzantine emperor from 842 to 867. Michael III was the third and traditionally last member of the Amorian dynasty, Amorian (or Phrygian) dynasty. He ...
deposed
Patriarch Ignatius of Constantinople and
Photius
Photius I of Constantinople (, ''Phōtios''; 815 – 6 February 893), also spelled ''Photius''Fr. Justin Taylor, essay "Canon Law in the Age of the Fathers" (published in Jordan Hite, T.O.R., and Daniel J. Ward, O.S.B., "Readings, Cases, Mate ...
was appointed in his place.
Pope Nicholas I
Pope Nicholas I (; c. 800 – 13 November 867), called Nicholas the Great, was the bishop of Rome and ruler of the Papal States from 24 April 858 until his death on 13 November 867. He is the last of the three popes listed in the Annuario Pontif ...
declared the deposition of Ignatius invalid. After Michael was murdered, Ignatius was reinstated as patriarch without challenge and in 869–870 a
council in Constantinople, considered ecumenical in the West,
anathematized Photius. With Ignatius' death in 877, Photius became patriarch, and in 879–880
another council in Constantinople, which many Easterners consider ecumenical, annulled the decision of the previous council.
["Photius", in Cross, F. L., ed., ''The Oxford Dictionary of the Christian Church'' (New York: Oxford University Press. 2005)]
See also
*
Ancient church councils (pre-ecumenical)
Ancient history is a time period from the History of writing, beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian language, ...
– church councils before the First Council of Nicaea
*
Byzantine Empire
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
*
Late ancient history of Christianity
*
Outline of the Catholic ecumenical councils
*
Synod of Ancyra
*
Synodicon Orientale
*
Timeline of Christianity
References
External links
Schaff's ''The Seven Ecumenical Councils''Fourth-Century Christianity
{{Eastern Orthodox Church footer
Ecumenical councils
Christian terminology
Christianity in late antiquity