Columbia subject headings:
Civilization, Medieval.
Middle Ages.
Harvard subject headings:
Civilization, Ancient.
Civilization, Medieval.
Europe--Antiquities.
Europe--History--392-814.
History, Ancient.
Middle Ages.
Princeton subject headings:
Civilization, Ancient.
Civilization, Medieval.
Europe--Antiquities.
Europe--History--392-814.
History, Ancient.
Middle Ages.