Columbia subject headings:
Greece--History--Ionian Revolt, 499-494 B.C.
Greece--History--Persian Wars, 500-449 B.C.--Collaborationists.
Harvard subject headings:
Greece--History--Ionian Revolt, 499 B.C.-494 B.C.
Greece--History--Persian Wars, 500 B.C.-449 B.C.--Collaborationists.
Greeks--Asia.
Herodotus.
Princeton subject headings:
Greece--History--Persian Wars, 500-449 B.C.
Herodotus. History.