The Roman Empire From Severus To Constantine -

Germanic tribes crossed the Rhine and Danube, while the Sassanid Persians pressured the East.

He took an active role in church doctrine, seeking to unify the faith. The Roman Empire from Severus to Constantine

After Diocletian’s retirement, the Tetrarchy dissolved into civil war. Out of the smoke emerged . Following his victory at the Battle of the Milvian Bridge in 312 AD—where he claimed to have seen a vision of a cross in the sky—Constantine fundamentally altered the course of Western civilization. Germanic tribes crossed the Rhine and Danube, while

The empire physically broke apart into three pieces: the Gallic Empire in the west, the Palmyrene Empire in the east, and the Roman core. Diocletian and the Tetrarchy (284–305 AD) Out of the smoke emerged

For fifty years, the Roman Empire was a revolving door of "Barracks Emperors"—generals who were declared emperors by their troops only to be murdered months later. The empire faced a "perfect storm" of disasters:

The Cyprian Plague decimated the workforce and the army.