Take this quiz to test your knowledge of the trends and policies surrounding U.S. immigration.

Test your knowledge of international organizations and treaties, including the European Union and the World Trade Organization.

Test your knowledge of international organizations and treaties, including long-standing defense alliances and the United Nations.

Test your knowledge of Australia, from its system of government to its trade policy.

Test your knowledge of the immediate postwar period, including the Marshall Plan and the creation of the United Nations.