Constantine I
The answer is the Arch of Constantine in Rome.
He moved the capital to Byzantium, which was renamed Constantinople later. Constantine renamed Byzantium Roma Nova, but the name did not catch on. People preferred to call it Constantinople This was the new capital of the east. The previous one was Nicodemia, in northwest Turkey, not far from Constantinople. Milan was the capital of the west and Rome continued to be the nominal capital of the empire.
Rome is the capital of Italy.
AnsweConstantine I became Emperor in the "Gallic Prefecture" of Britain, Gaul and the Iberian Peninsula, on the death of his father in 306. In 312 he defeated Maxentius at the Milvian Bridge (at which point he openly embraced Christianity) and thus became sole Emperor in the West. A rival, Licinius, ruled the Eastern half until 324, when Constantine defeated him in civil war. Constantine then ruled the whole empire until his death in 337.
Octavian/Augustus was the first emperor of Rome and his rule lasted for 41 years, from 27 BC to 14 AC.
Constantine did not make Rome the imperial capital. He designated Byzantium, which he redeveloped and renamed Constantinople (City of Constantine), as his imperial capital.
Constantine the Great did not do anything to the capital of Rome. He create a new capital for the Roman Empire. He designated Byzantium as his imperial capital, redeveloped, renamed it after himself (Constantinople, which means City of Constantine) and inaugurated it in 300.
The Emperor Constantine made these changes.
He moved the capital of Rome to Byzantium, later known as Constantinople, and named the city New Rome. Constantine was also the first Christian Roman emperor.
Constantine coverted Rome to christianity
Constantine's new capital is Nova Roma or "New Rome".
There was not an opposite of Constantine. Constantine the Great was the 7th Roman emperor.
Constantine the Great designated Byzantium as his imperial capital, redeveloped it and renamed it Constantinople (City of Constantine). Contrary from it is sometimes though, he did not move the capital from Rome. Rome had already ceased to be the imperial capital under Constantine's predecessor, Diocletian, who designated Nicomedia (in north-western Turkey, not far from Byzantium) as the imperial capital of the eastern part of the Roman Empire and Milan (in northern Italy) as the imperial capital of the western part of the empire.
The emperor Constantine I (or the Great) did not move the imperial capital of the roman Empire from Rome to Byzantium. He moved the imperial capital of the eastern part of the Roman Empire from Nicomedia (in north-western Turkey) to the nearby Byzantium, which he redeveloped and renamed after himself -- Constantinople (City of Constantine). Milan remained the imperial capital of the western part of the empire.Nicomedia and Milan had been designated as the imperial capitals of the east and west respectively by the emperor Diocletian. Rome had already ceased to be the imperial capital before Constantine.
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Emperor Constantine the Great moved the capital of the Byzantine/Roman Empire from Rome to Constantinople around 330 AD.
Constantine's new capital is Nova Roma or "New Rome".