Caracalla's Edict of Citizenship

The Constitutio Antoniniana was issued in 212 CE, one year after Caracalla murdered his brother and co-emperor Geta. Ancient critics, most famously Cassius Dio, suggested fiscal cynicism: citizenship brought obligations to pay inheritance and manumission taxes from which non-citizens were exempt. Modern historians have largely moved beyond this reductive view. The edict reflected a century-long trend toward integration: the provinces had been producing emperors, senators, and soldiers for generations. From a legal perspective the edict completed a process begun with the Social War's grants in 90 BCE. The practical consequences were profound. All free inhabitants now had access to Roman civil law — the law of contracts, property, marriage, and inheritance that would eventually form the basis of European legal systems. Caracalla was murdered by soldiers in 217 CE while urinating by the roadside — a suitably bathetic end for an emperor who had bathed in imperial luxury.

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