The Emperor Constantine was one of the great, charismatic figures of the ancient world. He was directly responsible for two momentous transformations that greatly affected our history and civilization: the founding of Constantinople as the Roman capital and the conversion of the Roman Empire to Christianity.

With knowledge gained from modern research in all relevant fields, including archaeology, papyrology, and art history, Michael Grant traces the controversies that surround this intriguing ruler back to their very beginnings. He draws a compelling portrait of Constantine, assessing the emperor's achievements as a general in command of his armies and as a resourceful politician and reformer.

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In art, politics, economics, social developments, and particularly in religion, the life of Constantine acts as a bridge between past and present.

Michael Grant goes beyond the bias of literary sources and reveals the private man behind the public persona: the superstitious beliefs underpinning Constantine's hallucinatory visions and dreams that heralded his conversion to Christianity; his persecution of paganism in the name of Christianity that set precedents for centuries to come; and the relationship between church and state that gave way to the totalitarianism of the Late Roman Empire. Was he the last notable Roman emperor, or the first medieval monarch? Was the great convert a saint and hero, or should we regard him as a murderer who killed his wife, his eldest son, and many of his friends to further his own ambitions?

These are just some of the issues raised in this revelatory biography.