Columbia subject headings:
Civilization, Classical.
Europe--History--1492-
Europe--History.
Greece--Civilization.
Rome--Civilization.
Harvard subject headings:
Civilization, Classical.
Europe--Civilization.
Europe--History--1492-
Europe--History.
Germany--Civilization.
Germany--History.
Greece--Civilization.
Rome--Civilization
Princeton subject headings:
History--Methodology.
History--Study and teaching (Higher).