Columbia subject headings:
Achaemenid dynasty, 559 B.C.-330 B.C.--Military aspects.
Achaemenid dynasty, 559 B.C.-330 B.C.--Political aspects.
Harvard subject headings:
Achaemenid dynasty, 559-330 B.C.--Military aspects.
Achaemenid dynasty, 559-330 B.C.--Political aspects.
Princeton subject headings: