Columbia subject headings:
Harvard subject headings:
Caracalla, Emperor of Rome, 188-217.
Germany--Antiquities, Roman.
Germany--History--To 843.
Romans--Germany
Rome--History--Severans, 193-235.
Princeton subject headings:
Caracalla, Emperor of Rome, 188-217.
Germany--Antiquities, Roman.
Germany--History--To 843.
Romans--Germany.
Rome--History--Severans, 193-235.