BATTLE OF THE MILVIAN BRIDGE
One correction here: in the video, I state that the Battle of the Milvian Bridge was the final battle that enabled Constantine to take complete control of the Empire. In reality, it was the penultimate battle. The final battle took place 12 years later, in 324 AD. The Battle of the Hellespont saw Constantine defeat the Eastern Emperor Licinius. Constantine wasted no time consolidating power afterwards, and continued exerting his considerable influence on Christianity, playing a major part in the First Council of Nicea the following year, in 325 AD.
I regret the error but, hey, it was early and off-script!