The Rise of the Byzantine Empire
In the years 324 - 330 C.E., Emperor Constantine the Great improved the city and renamed it after himself. He then moved the Roman Empire's capital to an ancient city of Byzantium.
Constantinople was well organized and a phenomenal capital. Along the northern and eastern parts of Byzantium, the emperor can send support to the provinces by using the Danube River. Due to its position along the Strait of Bosporus, these two regions were threatened because of the significance of the trade routes and to create blockades from enemy ships from the Black Sea from attacking undefended cities in the Mediterranean Sea. Although, the new capital was very easy to defend, since it was surrounded by water on three sides, and fortified by a wall on the fourth side. (Ancient and Medieval Eras 2012)