Columbia subject headings:
Byzantine Empire--Civilization--To 527--Congresses.
Byzantine antiquities--Congresses.
Christian antiquities--Byzantine Empire--Congresses.
Excavations (Archaeology)--Europe--Congresses.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600.
Civilization, Medieval.
Middle Ages.
Rome--History--Empire, 284-476.
Rome--History--Empire, 284-576.
Princeton subject headings: