he ruled it in 340 AD.
Constantine ruled over the Roman Empire from 306 to 337 AD
Emperor Constantine ruled the Roman Empire from 324 AD- 337 AD
Constantine never ended any empire. He ceased to be emperor when he died.
Justinian I, Leo III, John I Tzimisces, Basil II, Manuel I
The notable rule of the ancient Roman emperor Constantine began in 307 AD/CE and lasted until 337 AD/CE.
Emperor of the Roan Empire.
Constantine
Constantine promoted Christianity, but not in the Byzantine Empire. Constantine was emperor of Rome from 306 to 337 CE, but the Byzantine Empire came into existence in 395 CE, when Arcadius became emperor of the Eastern Empire, separating from the Western Roman Empire.
No, from the rule of the emperor Constantine, all Romans were Christians (Christianity became the state religion of the Roman Empire).
Constantine I
Constantine
Constantine