Columbia subject headings:
America--Discovery and exploration.
Commerce--History.
Discoveries in geography.
Great Britain--Politics and government.
Reformation.
Harvard subject headings:
America--Discovery and exploration.
Commerce--History
Discoveries in geography.
Great Britain--Politics and government--1066-1485.
Great Britain--Politics and government--1485-1603.
Great Britain--Politics and government.
Reformation.
Princeton subject headings: