Columbia subject headings:
Egypt--Civilization--To 332 B.C.
Egypt--History--Fourth dynasty, ca. 2613-ca. 2494 B.C.
Egypt--History--Old Kingdom, approximately 2686 B.C.-ca. 2181 B.C.
Egypt--History--Third dynasty, ca. 2649-2575 B.C.
Egypt--History--To 332 B.C.
Harvard subject headings:
Egypt--Civilization--To 332 B.C.
Egypt--History--To 332 B.C.
Egypt--History--To 332 B.C.--Chronology.
Princeton subject headings:
Egypt--Civilization--To 332 B.C.
Egypt--History--To 332 B.C.
Egypt--History--To 332 B.C.--Chronology.