Columbia subject headings:
Christianity and culture--History--Early church, ca. 30-600.
Christianity--Origin.
Church history--Primitive and early church, ca. 30-600.
Greece--Civilization.
Rome--Civilization.
Harvard subject headings:
Christianity and culture--History--Early church, ca. 30-600.
Christianity--Origin
Church history--Primitive and early church, ca. 30-600
Greece--Civilization.
Rome--Civilization
Princeton subject headings: