How did Constantine bring a significant change to the Roman Empire?

Answer 1

When Emperor Diocletian abdicated, there were to be two Augusti (senior emperors) and two Caesars (junior emperors).

Constantine's father, Constantius I, who was Caesar in the West, died in 306. In the style of a military coup, the troops in Britain hailed Constantine as Augustus, with the support of a German king, Crocus or Erocus, who was their ally. Galerius conceded Constantine the rank of Caesar, but making Severus his fellow Augustus. Constantine ostensibly accepted this arrangement. Shortly afterwards, Maxentius, who had also been passed over, asserted himself by a rebellion, at first calling himself princeps, but then Augustus. his father, Maximian, also returned to the throne, claiming the role of Augustus.

By 308, Constantine re-assumed the rank of Augustus and Galerius was obliged to acknowledge the claim. What followed was a series of civil wars, as various contenders vied for supremacy in the Roman Empire. On 3 July 324, the armies of Constantine and Licinius clashed outside Hadrianopolis, and in one of the biggest battles of the entire fourth century, Constantine became sole emperor of Rome.

Emperor Constantine is usually regarded as having ruled as Roman Emperor from 306 to 337 CE.

Answer 2

Constantine eventually established himself as sole emperor, largely ending the chaos caused by the struggles of the tetrarchy. He reorganised the army to make it more able to counter internal and external threats. He reorganised the government and stabilised the currency. He waged successful military campaigns against barbarian tribes. His legalisatin of Christianity may also have been a stabilising influence.

Answer 3

It had been split into four. He reunited it.