What were the religious policies of Constantine the Great?

Constantine the Great's religious policies shifted the Roman Empire toward supporting Christianity, marked notably by the Edict of Milan in 313 which decriminalised Christian worship. He favoured the Church by becoming a patron, resolving internal schisms, and calling ecumenical councils like the Council of Nicaea, while maintaining a complex stance that some historians describe as ambiguous. Although he formally favored Christianity from 312 onward and was eventually baptized on his deathbed, modern scholars continue to debate the depth of his personal conversion and his exact comprehension of the faith.

What we know

• Constantine and Licinius issued the Edict of Milan in 313, which decriminalised Christian practice and ceased Christian persecution across the Roman Empire. [3, 5]
• Constantine participated in resolving religious disputes by addressing the Donatist schism and convening the First Council of Nicaea in 325 concerning Arianism. [2, 3]
• Constantine ordered the construction of the Church of the Holy Sepulchre at the site considered to be the tomb of Jesus in Jerusalem. [3]
• Constantine's religious policies included increasing toleration of Christianity alongside limited regulations against Roman polytheism. [2] · medium confidence

Still open

• Historians and scholars remain uncertain and debate whether Constantine sincerely converted to Christianity, maintained loyalties to paganism, or used the religion primarily for political propaganda and imperial unity.
• There is no scholarly consensus on whether Constantine was raised a Christian, adopted his mother Helena's faith, or influenced her conversion.

Where to go next

• how it workedWhat was the First Council of Nicaea?
• what caused itHow did the Edict of Milan change Rome?
• whoWho was Helena, mother of Constantine?
• the bigger pictureWhat was the Christianization of the Roman Empire?
• compared withHow did Byzantine emperors handle church councils?
• an unexpected connectionWhy was a later Greek king named Constantine involved in a national schism?Both historical monarchs named Constantine faced severe national and political divisions deeply tied to polarizing ideological alignments during their reigns.

Sources

• [1]religious policies of Constantine the Great (Wikidata Q5163814) · CC0 1.0
• [2]Religious policies of Constantine the Great · CC BY-SA 4.0
• [3]Constantine the Great · CC BY-SA 4.0
• [4]Constantine I of Greece · CC BY-SA 4.0
• [5]Constantine the Great and Christianity · CC BY-SA 4.0

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