Columbia subject headings:
Harvard subject headings:
Athens (Greece)--Antiquities--Exhibitions.
Democracy--Greece--Athens--Exhibitions.
Greece--History--Persian Wars, 500 B.C.-449 B.C.--Exhibitions.
Marathon, Battle of, Greece, 490 B.C.--Exhibitions.
Marathon, Battle of, Greece, 490 B.C.--Influence.
Princeton subject headings:
Marathon, Battle of, Greece, 490 B.C.--Exhibitions.