It removed penalties for professing Christianity and resulted in the return of confiscated church property. The edict protected all religions, not just Christianity, from persecution by allowing anyone to worship any deity. By decree of March 7, 321, Emperor Constantine I the Great established Sunday as the official holiday of Sol Invictus - dies Solis.
After his victory in the civil wars against the emperors Maxentius and Licinius, he became the sole ruler of the Roman Empire.
