Columbia subject headings:
Europe--Foreign relations.
Europe--History.
Harvard subject headings:
Europe--Historiography.
Europe--History, Military.
Imperialism
Middle Ages--Historiography
Nationalism--Europe
Political culture--Europe.
Princeton subject headings:
Europe--Historiography.
Europe--History, Military.
Imperialism.
Middle Ages--Historiography.
Nationalism--Europe.
Political culture--Europe.