Columbia subject headings:
Limes (Roman boundary)--Congresses.
Roman provinces--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Rome--Congresses.
Limes (Roman boundary)--Congresses.
Roman provinces--Administration--History--Congresses.
Roman provinces--Congresses.
Rome--Boundaries--Congresses.
Rome--Colonies--Administration--History--Congresses.
Rome--History, Military--30 B.C.-476 A.D.--Congresses.
Rome--History, Military--Congresses.
Rome--Military antiquities--Congresses.
Princeton subject headings:
Excavations (Archaeology)--Rome--Congresses.
Roman provinces--History--Congresses.
Rome--Colonies--History--Congresses.
Rome--History, Military--30 B.C.-476 A.D.--Congresses.
Rome--Military antiquities--Congresses.