Columbia subject headings:
Humanism--Europe.
Peace--History.
Political science--Europe--History.
Reformation--Europe.
Renaissance.
War--History.
Harvard subject headings:
Europe--Politics and government--1492-1517.
Europe--Politics and government--476-1492.
Humanism.
Renaissance.
Princeton subject headings:
Humanism--Europe.
Peace--History.
Political science--Europe--History.
Reformation--Europe.
Renaissance.
War--History.