Columbia subject headings:
Harvard subject headings:
Democracy--Egypt--History--To 1500--Congresses.
Democracy--Greece--History--To 1500--Congresses.
Egypt--Antiquities--Congresses.
Egypt--Politics and government--30 B.C.-640 A.D.--Congresses.
Greece--Antiquities--Congresses.
Greece--Politics and government--146 B.C.-323 A.D.--Congresses.
Princeton subject headings:
Democracy--History--Congresses.