13th June 313: The Edict of Milan formally ends the persecution of Christians in the Roman Empire

Although the emperor Galerius had previously issued an Edict of Toleration towards Christians, the Edict of Milan went further by establishing religious freedom throughout the empire and granting Christians the right to practice their religion without interference or persecution.

27th October 312: Constantine the Great receives his Vision of the Cross, marking the start of his conversion to Christianity

While preparing for the decisive Battle of the Milvian Bridge, Constantine reportedly witnessed a Christian cross which may have been accompanied by a Latin inscription which roughly translates as ‘In this sign, you will conquer.’