Columbia subject headings:
Byzantine Empire--Civilization.
Civilization, Medieval.
Europe--Social conditions--To 1492.
Middle Ages--Medieval, 500-1500.
Social history.
Harvard subject headings:
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Social life and customs--Congresses.
Europe, Western--Civilization--Congresses.
Europe, Western--Social life and customs--Congresses.
France--Civilization--Congresses.
France--Social life and customs--Congresses.
Italy--Civilization--Congresses.
Italy--Social life and customs--To 1500--Congresses.
Princeton subject headings:
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Social life and customs--Congresses.
Europe, Western--Civilization--Congresses.
Europe, Western--Social life and customs--Congresses.
France--Civilization--Congresses.
France--Social life and customs--Congresses.
Italy--Civilization--Congresses.
Italy--Social life and customs--To 1500--Congresses.