Constantine I
Constantine I, also known as Constantine the Great, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He is best known for founding the city of Constantinople in 330 as the new capital of the Roman Empire, a strategically positioned metropolis between the Danube and Euphrates frontiers that served as the imperial seat for over a thousand years. He also played a pivotal role in the Christianization of the empire through the Edict of Milan in 313, which legalized Christianity, and by convoking the First Council of Nicaea in 325.
“If you look at Constantinople, it is kind of halfway between the Danube frontier and the Euphrates frontier... And Constantinople is right between the Danube and the Euphrates. These are the two major frontiers.”
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