Columbia subject headings:
Harvard subject headings:
Darius I, King of Persia, 548 B.C.-485 B.C.
Gaumata, usurper of the throne of Persia, -521 B.C.
Iran--History--To 640.
Princeton subject headings:
Darius I, King of Persia, 548 B.C.-485 B.C.
Gaumata, Usurper of the throne of Persia, d. 521 B.C.
Iran--History--To 640.