Take a Unit benchmark test.
Review Unit 1 Test: Beginnings to 1861
Unit 2 Test: Building a Powerful Nation
Unit 3 Test: The United States on the Brink of Change
Unit 4 Test: Boom Times to Hard Times
Unit 5 Test: Hot and Cold War
Unit 6 Test: A Period of Turmoil and Change
Unit 7 Test: Continuity and Change