Law · Roman Empire Daily
In 212 AD an emperor granted Roman citizenship to nearly every free person in the empire at a stroke.
Deep dive
The Constitutio Antoniniana, issued by Caracalla, extended citizenship to most free inhabitants. Ancient writers suggest it also widened the base for taxes that citizens paid.
Source: Cassius Dio, 'Roman History,' 78.9; the Giessen papyrus (P.Giss. 40).
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