Columbia subject headings:
Harvard subject headings:
Byzantine Empire--History, Military--Congresses.
Excavations (Archaeology)--Rome--Congresses.
Roman provinces--Administration--History--Congresses.
Rome--Army--Congresses.
Rome--Colonies--Administration--History--Congresses.
Rome--History, Military--Congresses.
Rome--History--Empire, 30 B.C.-476 A.D.--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Rome--Military antiquities--Congresses.
Princeton subject headings:
Rome--Army--Congresses.
Rome--History--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.