Christianity Becomes the State Religion of Rome

380 CE · Konstantinopolis · religious

During the reign of the Roman Emperor Theodosius I, the Edict of Thessalonica issued in 380 CE declared the Nicene form of Christianity the official religion of the empire.

This step was an important stage in Christianity's transformation from a tolerated faith into the official religion of the state. The decision played a decisive role in the long-term reshaping of the religious and political structure of Roman society.

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Frequently asked questions

What was Christianity Becomes the State Religion of Rome?
During the reign of the Roman Emperor Theodosius I, the Edict of Thessalonica issued in 380 CE declared the Nicene form of Christianity the official religion of the empire.
When did Christianity Becomes the State Religion of Rome happen?
380 CE
Where did Christianity Becomes the State Religion of Rome take place?
Konstantinopolis