Constantine
Constantine
Constantine split the Roman Empire into the Holy Roman Empire and the Byzantine Empire. It should be noted however that the emperor Diocletian (284-305 AD ) made this easier as he was the first to divide the empire into two parts, a western and eastern empire to be ruled separately. The emperors who followed Constantine, Julian and Theodosius I, made permanent the division of the Roman Empire into an eastern and western half.
Constantinople was the capital of the Roman Empire under Emperor Constantine the Great around 330 AD.
Constantinople was the capital of the Roman/Byzantine Empire 330 to 1204 and 1261 to 1453
rome become the 2nd most important city when the empire split under Constantine in 330 AD and constantinople became the capital of the more powerful eastern empire
Constantinople was the administrative capital of the Roman Empire from 330 AD. It was the capital of the East Roman Empire, and then of the medieval Roman Empire, now usually called the Byzantine Empire, until 1453, with a hiatus from 1203 to 1265.
AnswerIn 330 CE, Emperor Constantine dedicated the new city of Constantinople as the imperial capital of the Roman Empire.
Constantinople was inaugurated and an imperial capital in 330. Historians use 476 as the conventional date for the fall of the western part of the Roman Empire. This is the year when the last emperor of this part of the empire was deposed.
late Roman Empire: the eastern part of the late Roman Empire, from ad 330 to 1453, when its capital Constantinople fell to the Ottoman Turks. It was the center of Orthodox Christianity.
Theodosius I. the Great 347-395 became Roman Emperor in 388 AD and ordered the Roman Empire to be divided after his death between his incompetent sons Honorius who took over the West Roman Empire and Arcadius who reigned over East-Rome or Byzance with his capital Constantinople. So the Roman Empire capital was not moved to Constantinople but the Empire was split in West- and East-Rome. A+ls-----Constantine
You may not find total agreement on this answer, but I would have it begin in the year 476 with the fall of the Western Roman Empire. The Byzantines did not call themselves Byzantines any more than the ancient Greeks called themselves Greeks. The Byzantine Empire is modern nomenclature to avoid confusion with the Eastern Roman Empire after the Roman Empire was divided, but before the Western Roman Empire fell.
Byzantium was redeveloped, turned into the capital of the eastern part of the Roman Empire and renamed Constantinople in 330 by Constantine the Great. He was not a king, he was an emperor. He was not the emperor of the eastern part of the Roman Empire either. To start with he was a co-emperor. There were several co-emperors who ruled parts of the Roman Empire. He was in charge of Britannia, Gaul and Spain in the western part of the Roman Empire. Later he became the sole emperor of the whole of the Roman Empire. Not long before the above, Emperor Diocletian designated Nicomedia (in northwestern Turkey) as the imperial capital of the eastern part of the Roman Empire and Milan as the imperial capital of the western part of the Roman Empire. He co-ruled with co-emperor Maximian. He took charge of the eastern part of the empire and Maximian took charge of the western part. It has to be stressed that Diocletian did not split the empire, which remained a single and united empire. It was an administrative arrangement designed to improve the defences of the vast frontiers of the Roman Empire. Eastern Roman Empire and Western Roman Empire are terms which have been coined by historians. The Romans had only one term: Roman Empire. Constantine the Great moved the capital of the eastern part of the Roman Empire from Nicomedia to the nearby Byzantium.