Columbia subject headings:
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Rome--Civilization
Rome--History--Empire, 30 B.C.-476 A.D.
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Rome (Italy)--Civilization.
Rome (Italy)--History--B.C. 30-A.D. 476.