- c. 6-4 BC: Birth of Jesus
- c. 48: Paul's Conversion
- 29-69: Christianity spreads to Syria, Asia Minor, and Italy.
- c. 65-95: The Gospels are written.
- c.100-200: Administrative structure of the Church develops.
- c. 150-c. 230: Clement of Alexandria
- 303: Emperor Diocletian issues his edicts against Christianity
- 312: Emperor Constantine converts to Christianity
- 325: Council of Nicea
- 340-430: Period of the Church Fathers: St. Ambrose, 340-397; St. Jerome, 340-420; St. Augustine, 354-430.
- 394: Emperor Theodosius declares Christianity the official religion of the Roman Empire.
III. Beyond the Roman Empire: 400-1500
- 400-1000: Missions to the Germanic Peoples
- 1000-1400: Forming a Christian Society
- 1400-1650: Reforming the Church
- 1600-2000: The Secularization of Society
- 400-1400: The Church in the Eastern Roman Empire (Byzantium)
- 1054: Great Schism between Orthodox and Roman Catholic Churches
- 1204: Constantinople captured in Fourth Crusade.
- 1240: Kiev is destroyed by the Mongols.
- 1453: Constantinople is captured by the Ottoman Turks; Byzantine Empire Ends
- 800-1000: Missions to the Slavic Peoples
- 858-867: The Missionary Journeys of Sts. Cyril and Methodius
- 966: Mieszko I of Poland converts to Christianity
- 988: Kievan Russia converts to Orthodox Christianity.
- 1450-1900: The Church in the Russian Empire
- 1900-2000: The Church Under Communism
- c. 400: The Kingdom of Axum converts to Christianity.
- Nestorian Christianity becomes dominant Christian sect in Sassinid Empire.
- 483: Edict of Toleration granted to Christians in the Sassanid Empire
- 491: Armenian Church repudiates the Council of Chalcedon.
- 1637-1638: Shimbara rebellion in Japan. Christian peasants protest repression.
- 1658: Société des missions ètrangéres ("Foreign Mission Society") founded in Paris.
- 1716: Christian teaching prohibited in China.
- 1948: World Council of Churches founded.
Text copyright 2003 by David W. Koeller. All rights reserved.