|Council of Ephesus|
|First Council of Constantinople|
|Council of Chalcedon|
|Convoked by||Emperor Theodosius II|
|President||Cyril of Alexandria|
|Attendance||200–250 (papal representatives arrived late)|
|Topics||Nestorianism, Theotokos, Pelagianism, Premillennialism|
Documents and statements
|Confirmation of the original Nicene Creed, condemnations of heresies, declaration of Mary as "Theotokos", eight canons|
|Chronological list of ecumenical councils|
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|Eastern Orthodox Church|
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of the Catholic Church
Renaissance depiction of the Council of Trent
|Antiquity (c. 50 – 451)|
|Early Middle Ages (553–870)|
|High and Late Middle Ages (1122–1517)|
The Council of Ephesus was a council of Christian bishops convened in Ephesus (near present-day Selçuk in Turkey) in AD 431 by the Roman Emperor Theodosius II. This third ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom,confirmed the original Nicene Creed, and condemned the teachings of Nestorius, Patriarch of Constantinople, who held that the Virgin Mary may be called the Christotokos, "Birth Giver of Christ" but not the Theotokos , "Birth Giver of God". It met in June and July 431 at the Church of Mary in Ephesus in Anatolia.
Nestorius' doctrine, Nestorianism, which emphasized the distinction between Christ's human and divine natures and argued that Mary should be called Christotokos (Christ-bearer) but not Theotokos (God-bearer), had brought him into conflict with other church leaders, most notably Cyril, Patriarch of Alexandria. Nestorius himself had requested the Emperor to convene the council, hoping that it would prove his orthodoxy; the council in fact condemned his teachings as heresy. The council declared Mary as Theotokos (Mother of God).
Nestorius' dispute with Cyril had led the latter to seek validation from Pope Celestine I, who authorized Cyril to request that Nestorius recant his position or face excommunication. Nestorius pleaded with the Eastern Roman Emperor Theodosius II to call a council in which all grievances could be aired, hoping that he would be vindicated and Cyril condemned.
Approximately 250 bishops were present. The proceedings were conducted in a heated atmosphere of confrontation and recriminations and created severe tensions between Cyril and Theodosius II. Nestorius was decisively outplayed by Cyril and removed from his see, and his teachings were officially anathematized. This precipitated the Nestorian Schism, by which churches supportive of Nestorius, especially in the Persian Empire of the Sassanids, were severed from the rest of Christendom and became known as Nestorian Christianity, or the Church of the East, whose present-day representatives are the Assyrian Church of the East, the Ancient Church of the East, the Chaldean Syrian Church, and the Chaldean Catholic Church. Nestorius himself retired to a monastery, later recanting his Nestorian position. [ citation needed ]
McGuckin cites the "innate rivalry" between Alexandria and Constantinople as an important factor in the controversy between Cyril of Alexandria and Nestorius.However, he emphasizes that, as much as political competition contributed to an "overall climate of dissent", the controversy cannot be reduced merely to the level of "personality clashes" or "political antagonisms". According to McGuckin, Cyril viewed the "elevated intellectual argument about christology" as ultimately one and the same as the "validity and security of the simple Christian life".
Even within Constantinople, some supported the Roman-Alexandrian and others supported the Nestorian factions. For example, Pulcheria supported the Roman-Alexandrian popes while the emperor and his wife supported Nestorius.
Contention over Nestorius' teachings, which he developed during his studies at the School of Antioch, largely revolved around his rejection of the long-used title Theotokos ("Birth-giver of God") for the Virgin Mary. Shortly after his arrival in Constantinople, Nestorius became involved in the disputes of two theological factions, which differed in their Christology.
McGuckin ascribes Nestorius' importance to his being the representative of the Antiochene tradition and characterizes him as a "consistent, if none too clear, exponent of the longstanding Antiochene dogmatic tradition." Nestorius was greatly surprised that what he had always taught in Antioch without any controversy whatsoever should prove to be so objectionable to the Christians of Constantinople. Nestorius emphasized the dual natures of Christ, trying to find a middle ground between those who emphasized the fact that in Christ God had been born as a man, insisted on calling the Virgin Mary Theotokos (Greek: Θεοτόκος, "God-bearer"), and those that rejected that title because God as an eternal being could not have been born. Nestorius suggested the title Christotokos (Χριστοτόκος, "Christ-bearer"), but this proposal did not gain acceptance on either side.
Nestorius tried to answer a question considered unsolved: "How can Jesus Christ, being part man, not be partially a sinner as well, since man is by definition a sinner since the Fall?" To solve that he taught that Mary, the mother of Jesus gave birth to the incarnate Christ, not the divine Logos who existed before Mary and indeed before time itself. The Logos occupied the part of the human soul (the part of man that was stained by the Fall). But wouldn't the absence of a human soul make Jesus less human? Nestorius rejected this proposition, answering that, because the human soul was based on the archetype of the Logos, only to become polluted by the Fall, Jesus was "more" human for having the Logos and not "less". Consequently, Nestorius argued that the Virgin Mary should be called Christotokos, Greek for "Birth Giver of Christ", and not Theotokos , Greek for "Birth Giver of God".
Nestorius believed that no union between the human and divine was possible. If such a union of human and divine occurred, Nestorius believed that Christ could not truly be con-substantial with God and con-substantial with us because he would grow, mature, suffer and die (which Nestorius argued God cannot do) and also would possess the power of God that would separate him from being equal to humans.
According to McGuckin, several mid-twentieth-century accounts have tended to "romanticise" Nestorius; in opposition to this view, he asserts that Nestorius was no less dogmatic, uncompromising than Cyril and that he was fully just as prepared to use his political and canonical powers as Cyril or any of the other hierarchs of the period.
Nestorius's opponents charged him with detaching Christ's divinity and humanity into two persons existing in one body, thereby denying the reality of the Incarnation. Eusebius, a layman who later became the bishop of the neighbouring Dorylaeum was the first to accuse Nestorius of heresy but his most forceful opponent was Patriarch Cyril of Alexandria. Cyril argued that Nestorianism split Jesus in half and denied that he was both human and divine.
Cyril appealed to Pope Celestine I, charging Nestorius with heresy. The Pope agreed and gave Cyril his authority to serve a notice to Nestorius to recant his views within ten days or else be excommunicated. Before acting on the Pope's commission, Cyril convened a synod of Egyptian bishops which condemned Nestorius as well. Cyril then sent four suffragan bishops to deliver both the Pope's commission as well as the synodal letter of the Egyptian bishops. Cyril sent a letter to Nestorius known as "The Third Epistle of Saint Cyril to Nestorius." This epistle drew heavily on the established Patristic Constitutions and contained the most famous article of Alexandrian Orthodoxy: "The Twelve Anathemas of Saint Cyril." In these anathemas, Cyril excommunicated anyone who followed the teachings of Nestorius. For example, "Anyone who dares to deny the Holy Virgin the title Theotokos is Anathema!" Nestorius however, still would not repent. McGuckin points out that other representatives of the Antiochene tradition such as John of Antioch, Theodoret and Andrew of Samosata were able to recognize "the point of the argument for Christ's integrity" and concede the "ill-advised nature of Nestorius' immoveability."Concerned at the potential for a negative result at a council, they urged Nestorius to yield and accept the use of the title Theotokos when referring to the Virgin Mary.
For example, John of Antioch wrote to Nestorius urging him to submit to the Pope's judgment and cease stirring up controversy over a word that he disliked (Theotokos) but which could be interpreted as having an orthodox meaning especially in light of the fact that many saints and doctors of the church had sanctioned the word by using it themselves. John wrote to Nestorius, "Don't lose your head. Ten days! It will not take you twenty-four hours to give the needed answer.... Ask advice of men you can trust. Ask them to tell you the facts, not just what they think will please you.... You have the whole of the East against you, as well as Egypt." Despite this advice from his colleagues, Nestorius persisted in maintaining the rightness of his position.
On 19 November, Nestorius, anticipating the ultimatum which was about to be delivered, convinced Emperor Theodosius II to summon a general council through which Nestorius hoped to convict Cyril of heresy and thereby vindicate his own teachings. Theodosius issued a Sacra calling for the metropolitan bishops to assemble in the city of Ephesus, which was a special seat for the veneration of Mary, where the theotokos formula was popular. Each bishop was to bring only his more eminent suffragans. The date set by the Emperor for the opening of the council was Pentecost (7 June) 431.
McGuckin notes that the vagueness of the Sacra resulted in wide variations of interpretation by different bishops. In particular, the vastness of John of Antioch's ecclesiastical territory required a lengthy period to notify and gather his delegates. Because the overland trip from Antioch to Ephesus was long and arduous, John composed his delegation of his metropolitan bishops who were restricted to bring no more than two suffragans each. By doing so, he minimized the number who would have to travel to Ephesus. Neither of the emperors attended the council. Theodosius appointed Count Candidian as the head of the imperial palace guard to represent him, to supervise the proceedings of the Council, and to keep good order in the city of Ephesus. Despite Nestorius' agenda of prosecuting Cyril, Theodosius intended for the council to focus strictly on the christological controversy. He thus gave Candidianus strict directions to remain neutral and not to interfere in the theological proceedings. It is generally assumed that Candidian initially maintained his neutrality as instructed by the emperor and only gradually became more biased towards Nestorius. McGuckin, however, suggests that Candidian may have favored Nestorius from the start.
Celestine sent Arcadius and Projectus, to represent himself and his Roman council; in addition, he sent the Roman priest, Philip, as his personal representative. Cyril Patriarch of Alexandria was president of the council. Celestine had directed the papal legates not to take part in the discussions, but to give judgment on them.
Bishops arrived in Ephesus over a period of several weeks. While waiting for the other bishops to arrive, they engaged in informal discussions characterized as tending to "exasperate rather than heal their differences".The metropolitan of Ephesus, Memnon, was already present with his 52 bishops. Nestorius and his 16 bishops were the first to arrive shortly after Easter. As archbishop of the imperial city of Constantinople, he traveled with a detachment of troops who were under the command of Count Candidian. McGuckin notes that the troops were not there to serve as Nestorius' bodyguard but to support Candidian in his role as the emperor's representative. However, McGuckin theorizes that Candidian's progressive abandonment of neutrality in favor of Nestorius may have created the perception that Candidian's troops were, in fact, there to support Nestorius. Candidian ordered all monks and lay strangers to leave the city; he further instructed the bishops not to leave on any pretext until the council was concluded. Several sources comment that the purpose of this injunction was to prevent bishops from leaving the council to appeal to the emperor directly.
According to McGuckin, Memnon, as bishop of Ephesus, commanded the "fervent and unquestioned loyalty" of the local populace and thus could count on the support of local factions to counterbalance the military might of Candidian's troops.In view of the verdict of Rome against Nestorius, Memnon refused to have communion with Nestorius, closing the churches of Ephesus to him.
Cyril brought with him 50 bishops, arriving only a few days before Pentecost.There were very few bishops representing the West, as the papal representatives would not arrive until July. The Palestinian delegation of 16 bishops and Metropolitan Flavian of Philippi arrived 5 days after the date that had been set for opening the council, and aligned themselves with Cyril.
At this point, Cyril announced his intention to open the council; however, Candidian enjoined him from doing so on the grounds that the Roman and Antiochean delegations had not arrived yet.Cyril initially acceded to Candidian's injunction knowing that he could not legally convene a council without the official reading of the Emperor's Sacra.
A number of bishops, who were undecided between Nestorius and Cyril, did not want to give Cyril, as one party in the dispute, the right to chair the meeting and decide the agenda;however, they began to take Cyril's side for various reasons.
Various circumstances including a detour necessitated by flooding as well as sickness and death of some of the delegates seriously delayed John of Antioch and his bishops.It was rumored that John might be delaying his arrival in order to avoid participating in a council which was likely to condemn Nestorius as a heretic.
Two weeks after the date set for the council, John and the bulk of his Syrian group (42 members) had not yet appeared. At this point, Cyril formally opened the council on Monday 22 June by enthroning the Gospels in the centre of the church, as a symbol of Christ's presence among the assembled bishops.
Despite three separate summons, Nestorius refused to acknowledge Cyril's authority to stand in judgment of him and considered the opening of the council before the arrival of the Antiochene contingent as a "flagrant injustice".The 68 bishops who opposed opening the council entered the church in protest, arriving with Count Candidian who declared that the assembly was illegal and must disperse. He urged Cyril to wait four more days for the Syrian delegation to arrive. However, since even the bishops opposed to opening the council were now present, Cyril maneuvered Candidian by means of a ruse to read out the text of the Emperor's decree of convocation, which the assembly then acclaimed as recognition of its own legality.
When John of Antioch and his Syrian bishops finally reached Ephesus five days after the council, they met with Candidian who informed them that Cyril had begun a council without them and had ratified Celestine's conviction of Nestorius as a heretic. Angered at having undertaken such a long and arduous journey only to have been pre-empted by actions taken by Cyril's council, John and the Syrian bishops held their own Council with Candidian presiding. [ citation needed ]This council condemned Cyril for espousing the Arian, Apollinarian and Eunomian heresies and condemned Memnon for inciting violence. The bishops at this council deposed both Cyril and Memnon. Initially, the emperor concurred with the actions of John's council but eventually withdrew his concurrence.
The second session was held in Memnon's episcopal residence. Philip, as papal legate, opened the proceedings by commenting that the present question regarding Nestorius had already been decided by Pope Celestine as evidenced by his letter, which had been read to the assembled bishops in the first session. He indicated that he had a second letter from Celestine which was read to the bishops now in attendance. The letter contained a general exhortation to the council, and concluded by saying that the legates had instructions to carry out what the pope had decided on the question and expressed Celestine's confidence that the council would agree. The bishops indicated their approval by acclaiming Celestine and Cyril. Projectus indicated that the papal letter enjoined the council to put into effect the sentence pronounced by Celestine. Firmus, the Exarch of Caesarea in Cappadocia, responded that the pope's sentence had already been carried out in the first session. The session closed with the reading of the pope's letter to the emperor.
Having read the Acts of the first session, the papal legates indicated that all that was required was that the council's condemnation of Nestorius be formally read in their presence. When this had been done, the three legates each confirmed the council's actions, signing the Acts of all three sessions. The council sent a letter to Theodosius indicating that the condemnation of Nestorius had been agreed upon not only by the bishops of the East meeting in Ephesus but also of the bishops of the West who had convened at a synod in Rome convened by Celestine. The bishops asked Theodosius to allow them to go home since so many of them suffered from their presence at Ephesus.
At the fourth session, Cyril and Memnon presented a formal protest against John of Antioch for convening a separate conciliabulum. The council issued a summons for him to appear before them, but he would not even receive the envoys who were sent to serve him the summons.
Next day the fifth session was held in the same church. John had set up a placard in the city accusing the synod of the Apollinarian heresy. He was again cited, and this was counted as the third canonical summons. He paid no attention. In consequence the council suspended and excommunicated him, together with thirty-four bishops of his party, but refrained from deposing them. Some of John's party had already deserted him, and he had gained only a few. In the letters to the emperor and the pope which were then dispatched, the synod described itself as now consisting of 210 bishops. The long letter to Celestine gave a full account of the council, and mentioned that the pope's decrees against the Pelagians had been read and confirmed.
At this session, the bishops approved Canon 7 which condemned any departure from the creed established by the First Council of Nicaea, in particular an exposition by the priest Charisius. According to a report from Cyril to Celestine, Juvenal of Jerusalem tried and failed to create for himself a patriarchate from the territory of the Antiochene patriarchate in which his see lay. He ultimately succeeded in this goal twenty years later at the Council of Chalcedon.
At this session, the council approved the claim of the bishops of Cyprus that their see had been anciently and rightly exempt from the jurisdiction of Antioch. The council also passed five canons condemning Nestorius and Caelestius and their followers as heretics and a sixth one decreeing deposition from clerical office or excommunication for those who did not accept the Council's decrees.
Eight canons were passed:
The Council denounced Nestorius' teaching as erroneous and decreed that Jesus was one person (hypostasis), and not two separate persons, yet possessing both a human and divine nature. The Virgin Mary was to be called Theotokos a Greek word that means "God-bearer" (the one who gave birth to God).
The Council 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".It quoted the Nicene Creed as adopted by the First Council of Nicaea in 325, not as added to and modified by the First Council of Constantinople in 381.
Although some scholars, such as Norman Cohn and Peter Toon, have suggested that the Council of Ephesus rejected premillennialism, this is a misconception, and there is no evidence of the Council making any such declaration.
The bishops at Cyril's council outnumbered those at John of Antioch's council by nearly four to one. In addition, they had the agreement of the papal legates and the support of the population of Ephesus who supported their bishop, Memnon.
However, Count Candidian and his troops supported Nestorius as did Count Irenaeus. The emperor had always been a firm supporter of Nestorius, but had been somewhat shaken by the reports of the council. Cyril's group was unable to communicate with the emperor because of interference from supporters of Nestorius both at Constantinople and at Ephesus. Ultimately, a messenger disguised as a beggar was able to carry a letter to Constantinople by hiding it in a hollow cane.
Although Emperor Theodosius had long been a staunch supporter of Nestorius, his loyalty seems to have been shaken by the reports from Cyril's council and caused him to arrive at the extraordinary decision to ratify the depositions decreed by both councils. Thus, he declared that Cyril, Memnon, and John were all deposed. Memnon and Cyril were kept in close confinement. But in spite of all the efforts of the Antiochene party, the representatives of the envoys whom the council was eventually allowed to send, with the legate Philip, to the Court, persuaded the emperor to accept Cyril's council as the true one. Seeing the writing on the wall and anticipating his fate, Nestorius requested permission to retire to his former monastery. The synod was dissolved in the beginning of October, and Cyril arrived amid much joy at Alexandria on 30 October. Pope Celestine had died on July 27 but his successor, Sixtus III, gave papal confirmation to the council's actions.
The events created a major schism between the followers of the different versions of the council, which was only mended by difficult negotiations. The factions that supported John of Antioch acquiesced in the condemnation of Nestorius and, after additional clarifications, accepted the decisions of Cyril's council. However, the rift would open again during the debates leading up to the Council of Chalcedon.
Persia had long been home to a Christian community that had been persecuted by the Zoroastrian majority, which had accused it of Roman leanings. In 424, the Persian Church declared itself independent of the Byzantine and all other churches, in order to ward off allegations of foreign allegiance. Following the Nestorian Schism, the Persian Church increasingly aligned itself with the Nestorians, a measure encouraged by the Zoroastrian ruling class. The Persian Church became increasingly Nestorian in doctrine over the next decades, furthering the divide between Christianity in Persia and in the Roman Empire. In 486 the Metropolitan of Nisibis, Barsauma, publicly accepted Nestorius' mentor, Theodore of Mopsuestia, as a spiritual authority. In 489 when the School of Edessa in Mesopotamia was closed by Byzantine Emperor Zeno for its Nestorian teachings, the school relocated to its original home of Nisibis, becoming again the School of Nisibis, leading to a wave of Nestorian immigration into Persia. The Persian patriarch Mar Babai I (497–502) reiterated and expanded upon the church's esteem for Theodore, solidifying the church's adoption of Nestorianism.
In 1994, the Common Christological Declaration between the Catholic Church and the Assyrian Church of the East marked the resolution of a dispute between those two churches that had existed since the Council of Ephesus. They expressed their common understanding of doctrine concerning the divinity and humanity of Christ, and recognized the legitimacy and rightness of their respective descriptions of Mary as, on the Assyrian side, "the Mother of Christ our God and Saviour", and, on the Catholic side, as "the Mother of God" and also as "the Mother of Christ".
The Chalcedonian Definition is a declaration of Christ's nature, adopted at the Council of Chalcedon in AD 451. Chalcedon was an early centre of Christianity located in Asia Minor. The council was the fourth of the Ecumenical Councils that are accepted by Chalcedonian churches which include the Eastern Orthodox, Roman Catholic, and most Protestant churches. It was the first council not to be recognised by any Oriental Orthodox church; for this reason these churches may be classified as Non-Chalcedonian.
Cyril of Alexandria 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. Cyril wrote extensively and was a leading protagonist in the Christological controversies of the late-4th and 5th centuries. He was a central figure in the Council of Ephesus in 431, which led to the deposition of Nestorius as Patriarch of Constantinople.
An ecumenical council is a conference of ecclesiastical dignitaries and theological experts convened to discuss and settle matters of Church doctrine and practice in which those entitled to vote are convoked from the whole world (oikoumene) and which secures the approbation of the whole Church.
The First Council of Constantinople was a council of Christian bishops convened in Constantinople in AD 381 by the Roman Emperor Theodosius I. This second ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom, except for the Western Church, confirmed the Nicene Creed, expanding the doctrine thereof to produce the Niceno-Constantinopolitan Creed, and dealt with sundry other matters. It met from May to July 381 in the Church of Hagia Irene and was affirmed as ecumenical in 451 at the Council of Chalcedon.
Nestorianism is a Christian theological doctrine that upholds several distinctive teachings in the fields of Christology and Mariology. It opposes the concept of hypostatic union and emphasizes that the two natures of Jesus Christ were joined by will rather than personhood. This Christological position is defined as radical dyophysitism. Nestorianism was named after Christian theologian Nestorius (386–450), Patriarch of Constantinople from 428 to 431, who was influenced by Christological teachings of Theodore of Mopsuestia at the School of Antioch.
Theotokos is a title of Mary, mother of Jesus, used especially in Eastern Christianity. The usual Latin translations, Dei Genitrix or Deipara, are "Mother of God" or "God-bearer".
Nestorius was Archbishop of Constantinople from 10 April 428 to August 431, when Emperor Theodosius II confirmed his condemnation by the Council of Ephesus on 22 June.
Theodosius II, commonly surnamed Theodosius the Younger, or Theodosius the Calligrapher, was the Eastern Roman Emperor for most of his life, taking the throne as an infant in 402 and ruling as the Eastern Empire's sole emperor after the death of his father Arcadius in 408. He is mostly known for promulgating the Theodosian law code, and for the construction of the Theodosian Walls of Constantinople. He also presided over the outbreak of two great Christological controversies, Nestorianism and Eutychianism.
Eutyches was a presbyter and archimandrite at Constantinople. He first came to notice in 431 at the First Council of Ephesus, for his vehement opposition to the teachings of Nestorius; his condemnation of Nestorianism as heresy led him to an equally extreme, although opposite view, which precipitated his being denounced as a heretic himself.
Pope Dioscorus I of Alexandria, 25th Pope of Alexandria & Patriarch of the See of St. Mark. He was deposed by the Council of Chalcedon in 451 but was recognized as Patriarch by the Coptic Church until his death. He died on the Island of Gangra, Paphlagonia, in September 454. He is venerated as a saint by the Coptic and other Oriental Orthodox churches.
Aelia Pulcheria was regent of the Eastern Roman Empire during the minority of her brother Theodosius II, ruling empress of the Eastern Roman Empire for a few months in 450 and then empress by marriage to Marcian until her death.
The Nestorian Schism (431), in church history, involved a split between the Christian churches of Sassanid Persia, which affiliated with Nestorius, and churches that rejected him. The schism rose out of a Christological dispute, notably involving Cyril and Nestorius. The First Council of Ephesus in 431 and the Council of Chalcedon in 451 condemned Nestorius and his doctrine, which emphasized the radical distinctness between Christ's human and divine natures.
Eusebius of Dorylaeum was a 5th-century bishop who spoke out against heretical teachings, especially those of Nestorius and Eutyches, during the period of Christological controversy. He was bishop of Dorylaeum which is located in Phrygia. The name Eusebius may also be found as Eusebios which means “pious” in Greek. The surname “of Dorylaeum” is a result of his appointment to bishop in Dorylaeum.
Eutychianism, also known as Real Monophysitism, refers to a set of Christian theological doctrines derived from the ideas of Eutyches of Constantinople. Eutychianism is a monophysite understanding of how the human and divine relate within the person of Jesus Christ.
The Second Council of Ephesus was a Christological church synod in 449 AD convened by Emperor Theodosius II under the presidency of Pope Dioscorus I of Alexandria. It was intended to be an ecumenical council, and it is accepted as such by the miaphysite churches but was rejected by the Chalcedonian dyophysites. It was explicitly repudiated by the next council, the Council of Chalcedon of 451, recognised as the fourth ecumenical council by Chalcedonian Christians, and it was named the Latrocinium or "Robber Council" by Pope Leo I. The Chalcedonian churches, particularly the Roman Catholic and Eastern Orthodox communions, continue to accept this designation, while the Oriental Orthodox repudiate it.
In the history of Christianity, the first seven ecumenical councils include the following: the First Council of Nicaea in 325, the First Council of Constantinople in 381, the Council of Ephesus in 431, the Council of Chalcedon in 451, the Second Council of Constantinople in 553, the Third Council of Constantinople from 680–681 and finally, the Second Council of Nicaea in 787.
The Oriental Orthodox Churches are a group of Christian churches adhering to miaphysite Christology and theology, and together have about 62 million members worldwide.
In the 5th century in Christianity, there were many developments which led to further fracturing of the State church of the Roman Empire. Emperor Theodosius II called two synods in Ephesus, one in 431 and one in 449, that addressed the teachings of Patriarch of Constantinople Nestorius and similar teachings. Nestorius had taught that Christ's divine and human nature were distinct persons, and hence Mary was the mother of Christ but not the mother of God. The Council rejected Nestorius' view causing many churches, centered on the School of Edessa, to a Nestorian break with the imperial church. Persecuted within the Roman Empire, many Nestorians fled to Persia and joined the Sassanid Church thereby making it a center of Nestorianism. By the end of the 5th century, the global Christian population was estimated at 10-11 million. In 451 the Council of Chalcedon was held to clarify the issue further. The council ultimately stated that Christ's divine and human nature were separate but both part of a single entity, a viewpoint rejected by many churches who called themselves miaphysites. The resulting schism created a communion of churches, including the Armenian, Syrian, and Egyptian churches, that is today known as Oriental Orthodoxy. In spite of these schisms, however, the imperial church still came to represent the majority of Christians within the Roman Empire.
Christianity in late antiquity traces Christianity during the Christian Roman Empire – the period from the rise of Christianity under Emperor Constantine, until the fall of the Western Roman Empire. The end-date of this period varies because the transition to the sub-Roman period occurred gradually and at different times in different areas. One may generally date late ancient Christianity as lasting to the late 6th century and the re-conquests under Justinian of the Byzantine Empire, though a more traditional end-date is 476, the year in which Odoacer deposed Romulus Augustus, traditionally considered the last western emperor.
Eutherius of Tyana, metropolitan bishop of Tyana in Cappadocia II, features in the context of the 431 Council of Ephesus, where he belonged to the eastern delegation led by John of Antioch. Dismayed by the deposition of his fellow exponent of the School of Antioch, Nestorius, precipitated by Cyril of Alexandria's vigorous objection to the Christotokos expression which Nestorius used, Eutherius writes a lively text of protest, which in turn brings about his own deposition and exile, initially at Scythopolis in Palestine. John of Antioch, in the Act of Union of 433, reconciled with Cyril and pursued a policy of abandoning some of the positions he had once held and repression of those who continued to express them. His successor and nephew, Domnus II of Antioch, however, advocated conciliation, and Eutherius was able to escape from Scythopolis and take refuge with Irenaeus, the new bishop of Tyre.
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