Recognizing that the empire’s wealth and threats were now in the East, he moved the capital to Byzantium, renaming it "New Rome" (Constantinople). Conclusion
The transition from the Severan dynasty to the reign of Constantine the Great marks one of the most transformative periods in human history. It is the story of an empire that nearly collapsed under its own weight, only to be reinvented as a bureaucratic, militarized, and eventually Christian state. The Severan Dynasty: The Soldier-Emperors (193–235 AD)
The Cyprian Plague decimated the workforce and the army. The Roman Empire from Severus to Constantine
Germanic tribes crossed the Rhine and Danube, while the Sassanid Persians pressured the East.
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) Recognizing that the empire’s wealth and threats were
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:
Constantine legalized Christianity, moving it from a persecuted cult to the favored religion of the state. The Severan Dynasty: The Soldier-Emperors (193–235 AD) The
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.