The early history of Christianity's united church before major schisms is sometimes referred to as the ' Great Church' (though divergent sects existed at the same time, including Gnostics and Jewish Christians). Emperor Constantine the Great decriminalized Christianity in the Roman Empire by the Edict of Milan (313), later convening the Council of Nicaea (325) where Early Christianity was consolidated into what would become the State church of the Roman Empire (380). It soon attracted gentile God-fearers, which led to a departure from Jewish customs, and, after the Fall of Jerusalem, AD 70 which ended the Temple-based Judaism, Christianity slowly separated from Judaism. Jesus' apostles and their followers spread around the Levant, Europe, Anatolia, Mesopotamia, Transcaucasia, Egypt, and Ethiopia, despite initial persecution. Describing Jesus' life and teachings are the four canonical gospels of Matthew, Mark, Luke and John, with the Old Testament as the gospel's respected background.Ĭhristianity began as a Second Temple Judaic sect in the 1st century in the Roman province of Judea. The creeds of various Christian denominations generally hold in common Jesus as the Son of God-the Logos incarnated-who ministered, suffered, and died on a cross, but rose from the dead for the salvation of mankind and referred to as the gospel, meaning the 'good news'. Ĭhristianity remains culturally diverse in its Western and Eastern branches, as well as in its doctrines concerning justification and the nature of salvation, ecclesiology, ordination, and Christology. Its adherents, known as Christians, make up a majority of the population in 157 countries and territories, and believe that Jesus is the Christ, whose coming as the Messiah was prophesied in the Hebrew Bible (called the Old Testament in Christianity) and chronicled in the New Testament.

It is the world's largest religion, with about 2.5 billion followers.

Christianity is an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth.

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