Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine's sole control over the Roman Empire.

The Battle of Chrysopolis was fought on 18 September 324 between the Roman emperors Constantine I and Licinius near Chrysopolis, opposite Byzantium on the Asiatic shore of the Bosphorus. The battle followed Constantine's victory at the Battle of the Hellespont, where his son Crispus destroyed the Licinian fleet.

Licinius withdrew his forces from Byzantium to Chalcedon and gathered the remnants of his army, reinforced by Visigothic auxiliaries and the troops of the co-emperor Martinian.

The Battle of Constantine and Licinius
The Battle of Constantine and Licinius (Source: Wikimedia Commons)
Licinius & Constantine montage
Licinius & Constantine montage (Source: Wikimedia Commons)
As-Constantine-XR RIC vII 019
As-Constantine-XR RIC vII 019 (Source: Wikimedia Commons)
Licinius gold multiple CdM Beistegui 232
Licinius gold multiple CdM Beistegui 232 (Source: Wikimedia Commons)

Watch: 324 AD: How One Battle Forged Constantine's Roman Empire

From the The Daily Cache channel.

Sources and further reading: Wikipedia — Battle of Chrysopolis, Constantine the Great (CC BY-SA). Images: Wikimedia Commons.