Roman Citizenship Expansion Edict

The Constitutio Antoniniana was an edict issued by Emperor Caracalla granting Roman citizenship to all free inhabitants of the Roman Empire. This decree dramatically expanded the rights and responsibilities of many subjects who were previously considered provincials.

By extending citizenship, the edict aimed to unify the diverse populations under Roman law and increase tax revenues. It marked a significant shift in the Roman legal and social structure, influencing the Empire's political landscape profoundly.