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451 BCE
Council of Chalcedon
This council addressed debates concerning the nature of Christ, resulting in the Chalcedonian Definition, which articulated the doctrine of the hypostatic union—Christ as fully divine and fully human. -
Period: 330 BCE to 451 BCE
Monasticism and Early Church Fathers
Figures like St. Augustine, St. Ambrose, and St. Jerome played pivotal roles in theological development and the spread of monasticism. Their writings and teachings significantly influenced Christian doctrine. -
325 BCE
First council of Nicaea
Convened by Emperor Constantine, this council addressed the Arian controversy regarding the nature of Christ. The Nicene Creed was formulated, affirming the consubstantiality of the Son with the Father. -
313 BCE
Edict if Milan
Emperors Constantine and Licinius issued the Edict of Milan, granting religious tolerance throughout the empire and legalizing Christianity. This marked a significant turning point for the Christian Church. -
Period: 303 BCE to 311 BCE
Diocletians persecution
Emperor Diocletian initiated the most severe persecution of Christians, aiming to restore traditional Roman religious practices. Many Christians were martyred, and scriptures were destroyed during this period. -
70 BCE
Spread of Christianity
Despite persecutions, Christianity spread throughout the Roman Empire, reaching regions such as Asia Minor, Greece, and North Africa. Early Christian communities formed, and foundational texts were written during this period. -
64 BCE
Neros persecution
Following the Great Fire of Rome, Emperor Nero blamed Christians for the disaster, leading to severe persecutions. This marked one of the first major instances of state-sponsored persecution of Christians. -
49 BCE
Council of Jerusalem
Early church leaders convened to discuss whether Gentile converts needed to adhere to Jewish law. The council concluded that Gentiles could join the church without full adherence to Mosaic Law, facilitating the spread of Christianity beyond Jewish communities. -
Period: 46 BCE to 60 BCE
Missionary Journeys of St. Paul
Paul the Apostle embarked on multiple missionary journeys across the Roman Empire, establishing Christian communities and authoring epistles that form a significant portion of the New Testament. -
33 BCE
Pentecost
Fifty days after the resurrection, the Holy Spirit descended upon the apostles, empowering them to preach the gospel. This event is often referred to as the “Birthday of the Church.” -
30 BCE
Crucifixion and Resurrection of Jesus
Jesus of Nazareth was crucified under Roman authority, and according to Christian belief, he rose from the dead three days later. This event is foundational to Christian faith, symbolizing the promise of eternal life.