Columbia subject headings:
Citizenship--Rome.
Constitutio Antoniniana.
Rome--Politics and government--30 B.C.-284 A.D.
Harvard subject headings:
Citizenship--Rome
Constitutio Antoniniana.
Rome--Politics and government--30 B.C.-284 A.D.
Princeton subject headings:
Caracalla, Emperor of Rome, 188-217.
Constitutio Antoniniana.
Rome--Politics and government--30 B.C.-284 A.D.