Pagan Cults Lose State Backing (Late 4th Century)

Event Summary:
During the reign of Theodosius I (r. 379–395), the Roman state withdrew all official support from traditional pagan religions. Pagan temples lost legal protection and public funding. In their place, the Christian Church gained full state endorsement as the empire’s official religious institution.

Imperial Shift Underway:
Theodosius I (age ~33 at accession) ruled both East and West by 394. He became the last emperor to govern a united Roman Empire.

Edict of Thessalonica (380 CE):
In 380, Theodosius, with co-emperors Gratian and Valentinian II, issued the Edict of Thessalonica. It declared Nicene Christianity the only legitimate imperial faith.

Temple Closures Begin:
Between 381 and 391, Theodosius issued a series of anti-pagan laws. These prohibited public sacrifices, closed temples, and banned access to sacred pagan sites.

Loss of Legal Status:
Pagan priesthoods, once central to Rome’s civic life, lost state recognition. Temples could no longer receive endowments. Rituals like haruspicy and augury became illegal.

End of Public Funding:
The state redirected resources from pagan shrines to churches and monasteries. Public grain, construction funds, and imperial patronage followed the Christian clergy.

Altar of Victory Removed (384 CE):
Gratian’s earlier removal of the Altar of Victory from the Senate signaled Rome’s disavowal of its old gods. Theodosius never restored it.

Christian Bishops Gain Authority:
As pagan elites faded, Christian bishops, especially in Rome and Milan, became the empire’s new moral leaders. They administered cities, advised emperors, and shaped law.

Why It Matters:
With state support withdrawn, traditional Roman religion withered. This collapse of temple-based worship cleared space for a new spiritual order. The pope, rooted in Rome but aligned with Christian orthodoxy, began to inherit the cultural and institutional weight of a once-pagan empire.