context: Historians agree that the dynasty of Byzantine emperors begins with Roman Emperor Constantine I, who was the first to convert to Christianity from the rulers of that country, and the reason for making the dynasty begin with it is due to the fact that the Byzantine Empire was distinguished from Christianity by being Christian The aforementioned emperor also rebuilt the ancient city of Byzantium, which was built by the Greeks around the year 657 BC, and transferred the center of the capital to it, later named after him and became "Constantinople", and the later emperors viewed Constantine as the ideal ruler, and took him as an example for them. In short, the reason that makes Constantine the actual founder of this state is that its distinct cultural and civilizational characteristics that separate it from the Roman Empire emerged and crystallized during his reign: the system of its Roman Empire is centralized in Constantinople, with an Eastern context that is dominated by an eastern Eastern context. Its religion from the beginning, unlike Roman, which was pagan religion, and then evangelized.
question: What was the first emperor of the Byzantine Empire?
answers.text: Roman Emperor Constantine I