Columbia subject headings:
Harvard subject headings:
Iran--Foreign relations--Rome.
Iran--History, Military.
Iran--History--To 640.
Rome--Foreign relations--Iran.
Rome--History, Military.
Rome--History--Empire, 30 B.C.-284 A.D.
Shāpūr I, King of Iran, -272
Princeton subject headings:
Iran--History, Military.
Iran--History--To 640.
Rome--History, Military.
Rome--History--Empire, 30 B.C.-284 A.D.
Sassanids.
Shāpūr I, King of Iran, -272.