Columbia subject headings:
Harvard subject headings:
Egypt--History--30 B.C.-640 A.D.
Egypt--History--30 B.C.-640 A.D.--Historiography.
Egypt--Intellectual life.
Princeton subject headings:
Egypt--History--30 B.C.-640 A.D.
Egypt--History--30 B.C.-640 A.D.--Historiography.
Egypt--Intellectual life.