Columbia subject headings:
Achaemenid dynasty, 559 B.C.-330 B.C.
Zoroastrianism and state.
Harvard subject headings:
Achaemenid dynasty, 559-330 B. C.
Achaemenid dynasty, 559-330 B.C.
Zoroastrianism and state.
Princeton subject headings:
Achaemenid dynasty,
Iran--Kings and rulers--Religious aspects.
Legitimacy of governments--Iran.