Church history
The councils, divisions, reforms, migrations and revivals that produced the churches as they are — 31 of them, from the first communities in Jerusalem to the present.
Described by what happened, not by who was right. Where the parties gave different accounts of a division, that is part of the record rather than something settled here.
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30–33 AD Founding
The first communities Jerusalem
Followers of Jesus form a distinct movement within Judaism, meeting in homes and synagogues.
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35–60 AD Migration
The mission to the Gentiles Antioch and Asia Minor
The movement spreads beyond Jewish communities. The Jerusalem council settles that Gentile converts need not keep the whole law.
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49 AD Council
The council at Jerusalem Jerusalem
The apostles and elders settled that Gentile believers need not be circumcised or keep the whole law of Moses.
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64–313 AD Persecution
Imperial persecutions Roman empire
Intermittent rather than constant, worst under Decius and Diocletian, and ended by the Edict of Milan.
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70 AD Division
Destruction of the Temple Jerusalem
The end of the temple sharply separated the church from the synagogue and shifted Christianity's centre out of Judea.
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325 AD Council
Council of Nicaea Nicaea
Called by Constantine, it affirmed the Son as of one substance with the Father against Arius, and produced the first form of the Nicene Creed.
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381 AD Council
Council of Constantinople Constantinople
Completed the creed's article on the Holy Spirit; the form still recited today.
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431 AD Division
Council of Ephesus Ephesus
Condemned Nestorius over how Christ's natures should be spoken of. The Church of the East did not accept it and went its own way.
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451 AD Division
Council of Chalcedon Chalcedon
Defined Christ as one person in two natures. The Coptic, Syriac and Armenian churches rejected the formula, becoming the Oriental Orthodox.
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553 AD Council
Second Council of Constantinople Constantinople
Condemned three sets of writings in the hope of drawing the churches that had rejected Chalcedon back into communion.
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600–1300 AD Migration
Christianity along the Silk Road Persia, India, China
The Church of the East planted communities as far as Xi'an, where a stele of 781 records its presence, and in Kerala where they survive.
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680–681 AD Council
Third Council of Constantinople Constantinople
Defined that Christ has two wills, human and divine, against the compromise that he has only one.
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787 AD Council
Second Council of Nicaea Nicaea
Restored the veneration of icons after half a century of imperial iconoclasm, and is the last council the Orthodox count as ecumenical.
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1054 AD Division
The Great Schism Rome and Constantinople
Mutual excommunications formalised centuries of estrangement over papal authority and the filioque clause. Each side has given a different account of it ever since.
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1215 AD Council
Fourth Lateran Council Rome
The high point of medieval papal authority: it defined transubstantiation, required annual confession, and imposed distinguishing dress on Jews and Muslims.
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1378–1417 AD Division
The Western Schism Avignon and Rome
Two and then three men each claimed to be pope, with kingdoms and saints divided among them for forty years.
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1414–1418 AD Council
Council of Constance Constance
Ended the Western Schism and burned Jan Hus, who had come under an imperial safe-conduct.
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1438–1445 AD Rapprochement
Council of Florence Ferrara and Florence
Signed a reunion of the eastern and western churches that the eastern churches went home and repudiated.
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1517 AD Reform
The Reformation begins Wittenberg
Luther's objections to indulgences opened a wider argument about authority, scripture and justification that divided western Christendom.
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1525 AD Reform
The Radical Reformation Zurich
Anabaptists rejected infant baptism and state churches, and were persecuted by every established party.
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1534–1559 AD Reform
The English Reformation England
England separated from Rome under Henry VIII, then took a reformed doctrinal settlement under Edward VI and Elizabeth I while keeping bishops and liturgy.
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1545–1563 AD Council
Council of Trent Trent
Rome's answer to the Reformation: it defined justification, the sacraments and the canon, and reformed clerical discipline.
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1607–1750 AD Migration
Migration to the Americas North America
Puritans, Quakers, Catholics and Anabaptists carried their divisions across the Atlantic, where the absence of an established church let them multiply.
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1672 AD Council
Synod of Jerusalem Jerusalem
The Orthodox answer to Calvinism, occasioned by a confession published under a patriarch's name.
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1730–1840 AD Revival
The Great Awakenings Britain and North America
Waves of revival preaching produced the Methodist movement and, later, the Baptist and Restorationist expansion in America.
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1792–1910 AD Migration
The modern missionary movement Africa, Asia, Oceania
European and American missions planted churches across the global south, which is where most Christians now live.
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1869–1870 AD Council
First Vatican Council Rome
Defined papal infallibility when the pope teaches ex cathedra, hardening the difference with the eastern and Protestant churches.
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1906–1909 AD Revival
The Azusa Street revival Los Angeles
A racially mixed revival in a disused mission, from which Pentecostalism spread worldwide within a generation.
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1948–2026 AD Rapprochement
Ecumenical dialogue Worldwide
The World Council of Churches, the lifting of the 1054 anathemas, and the 1999 Joint Declaration on Justification narrowed some divisions without ending them.
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1962–1965 AD Council
Second Vatican Council Rome
Reformed Catholic liturgy and opened formal dialogue with other churches, ending the mutual excommunications of 1054 by a joint declaration in 1965.
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1970–2026 AD Migration
The centre of gravity shifts Africa, Asia, Latin America
Most Christians now live outside Europe and North America, and the fastest-growing churches are Pentecostal and independent.