Columbia subject headings:
Byzantine Empire--History--To 527--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Greece--History--323-1453--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Rome--Politics and government--284-476--Congresses.
Harvard subject headings:
Byzantine Empire--History--To 527--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Greece--History--323-1453--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Rome--Politics and government--284-476--Congresses.
Princeton subject headings:
Byzantine Empire--History--To 527--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Greece--History--323-1453--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Rome--Politics and government--284-476--Congresses.