Columbia subject headings:
Harvard subject headings:
Achaemenid dynasty, 559-330 B. C.
Achaemenid dynasty, 559-330 B.C.
Middle East--History--To 622.
Nomads--Middle East--History.
Princeton subject headings:
Achaemenid dynasty, 559-330 B.C.
Middle East--History--To 622.
Nomads--Middle East--History.