jan 1, 324 - Constantine I defeated Licinius and took over sole rule of Empire

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In 324, Constantine defeated Licinius and took control of a reunited empire. After this triumph, Constantine founded the city of Constantinople on the site of Byzantium.

Constantine continued to proclaim his adherence to Christianity, and his reign established influence over religious conflicts within the church. Not wanting questions about the divine nature of Christ to sow discord, Constantine summoned church officials to the Council of Nicaea in 325. Out of this came the Nicene Creed, which affirmed that Jesus was a divine being.

While in power, Constantine issued reforms intended to strengthen his regime. One such reform was a reorganization of the army, which helped Constantine when he faced tribes such as the Visigoths and the Sarmatians.

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