Browse the results list of your keyword search and look at the full records to see the subject headings assigned for relevant titles. Note that the results are sorted by relevance. You can change the results to sort by date, author, or title. Click on the subject headings to find more books on your topic.
For example, for the authors, titles, and subjects you are focusing on for this class:
Revolutionary Britain
Great Britain--History--Civil War, 1642-1649--Causes.
Great Britain--Politics and government--1558-1603.
Great Britain--Politics and government--1603-1649.
Great Britain--History--Civil War, 1642-1649.
French Revolution
France--History--Revolution, 1789-1799--Causes.
Revolutionaries--France--History--18th century.
France--History--Revolution, 1789-1799--Historiography.
France--History--Revolution, 1789-1799--Influence.
Revolutions of 1848
Revolutions--Europe--History--20th century.
Europe--History--1848-1849.
Europe--Politics and government--1848-1871.
Russian Revolution
Soviet Union--History--Revolution, 1917-1921.
France & Algerian Revolution
Algeria--Colonial influence--History--20th century.
France--Colonies--History--20th century.
Algeria--History--Revolution, 1954-1962--Diplomatic history.
Gaulle, Charles de, 1890-1970--Views on Algeria.
Algeria--Relations--France.
France--Relations--Algeria.
Algeria--History--20th century.
Hungarian Revolution
Hungary--History--Revolution, 1956.
Hungary--Politics and government--20th century.
Hungary--Foreign relations--1945-1989.
Hungary--Politics and government--1945-1989.
Counterculture
Nineteen sixties.
United States--Social conditions--1960-1980.
Counterculture--United States--History--20th century.
Subculture--England.
After you find a relevant book on your topic, you can also browse the catalogue by the Library of Congress call numbers to find more titles.