It became the center of the Eastern Orthodox Church.
Constantinople became the seat of Patriarch of Constantinople one of the four patriarchs of Orthodox Christianity (the others were the patriarchs of Alexandria, Antioch and Jerusalem). From the reign of Justinian the Great onward, the emperor , whose seat was Constantinople, were the supreme head of the Orthodox Church.
Roman Emperor Constantine founded Constantinople, which is current day Istanbul, and it became a major part of the Eastern Roman Empire.
Constantine I founded Constantinople in the year of 327 AD .
The City was founded in 327 by Constantine I .
The Emperor Constantine the Great moved the capital of his Empire from Old Rome to Constantinople the New Rome in 330 AD. He ruled as Emperor in Constantinople from 330 AD until his death in 337 AD.
It became the center of the Eastern Orthodox Church
Constantine did not move Constantinople. He founded it. The designated the city of Byzantium (in Greece) as his imperial capital, redeveloped it and renamed it Constantinople after himself (it means City of Constantine).
The City was founded in 327 AD .
Constantine
Constantinople became the capital of the eastern part of the Roman Empire. This made it important in the affairs of the Orthodox Church. Then, starting from Justinian I, Byzantine emperors became the effective heads of the Church. They managed its administration by presiding over the Ecumenical Councils. They exercised control over the ecclesiastical hierarchy. The Patriarch of Constantinople could not hold office if he did not have their approval.
Before it was known as Constantinople, Istanbul was called Byzantium. Founded by Greek colonists from Megara around 657 BCE, Byzantium was strategically located on the Bosporus Strait, facilitating trade between Europe and Asia. The city was later renamed Constantinople in 330 CE by the Roman Emperor Constantine the Great, who made it the capital of the Roman Empire.
Constantine's ascension to emperor of the Roman Empire in 306 AD marked a pivotal turning point in history, primarily due to his establishment of Christianity as a major force within the empire. His Edict of Milan in 313 AD legalized Christianity, leading to its spread and eventual dominance in Europe. Additionally, Constantine founded Constantinople (modern-day Istanbul), which became a vital center of trade and culture, effectively shifting the power center of the empire. This shift laid the groundwork for the Byzantine Empire and significantly influenced the development of Western civilization.
Emperor Constantine, also known as Constantine the Great, is best known for being the first Roman emperor to convert to Christianity and for establishing it as a favored religion in the empire. He issued the Edict of Milan in 313 AD, which granted religious tolerance to Christians and allowed them to practice their faith openly. Constantine also founded the city of Constantinople (modern-day Istanbul), which became the capital of the Eastern Roman Empire and a major center for Christianity. His reign marked a significant turning point in the history of both the Roman Empire and Christianity.