Columbia subject headings:
Emperors--Rome.
Rome--History--Flavians, 69-96.
Rome--History--Julio-Claudians, 30 B.C.-68 A.D.
Harvard subject headings:
Emperors--Rome
Rome--History--Civil War, 68-69.
Rome--History--Flavians, 69-96
Rome--History--Julio-Claudians, 30 B.C.-68 A.D.
Princeton subject headings: