Columbia subject headings:
Harvard subject headings:
Greece--History--Persian Wars, 500-449 B.C.--Historiography.
Herodotus--Criticism and interpretation.
Herodotus. History.
Xerxes I, King of Persia, 519 B.C.-465 B.C. or 464 B.C.
Princeton subject headings:
Greece--Historiography--Philosophy.
Herodotus. History.