AP®︎ US History Unit 9: Notes & Study Guide
Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 9 of AP US History – Period 9 (1980–Present).
Unit 9: Period 9 (1980–Present)
This unit covers political conservatism, globalization, and demographic changes in the U.S. since 1980. It examines the end of the Cold War, new economic challenges, and evolving debates over immigration, culture, and the environment.
Begin with Topic 9.1: Contextualizing Period 9To review Unit 9, go through each of the 7 topics below.
Everything you actually need to know for your Unit 9 test, pulled directly from the AP® U.S. History curriculum.
Contextualizing Period 9
Contextualizing Period 9
- How Period 9 Took Shape After 1980
- The Rise of Modern Conservatism
- Globalization, Technology, and the Restructured Economy
Reagan and Conservatism
Reagan and Conservatism
- What Reagan Conservatism Was
- Reagan’s Economic Program and Its Results
- Why Government Did Not Shrink as Much as Conservatives Wanted
The End of the Cold War
The End of the Cold War
- How the Cold War Ended
- Reagan’s Pressure Campaign Against Communism
- Why the Soviet Bloc Collapsed
A Changing Economy
A Changing Economy
- What the Changing Economy Was
- How Digital Technology Reshaped the Economy and Daily Life
- How Globalization and Deindustrialization Changed Work
Migration and Immigration in the 1990s and 2000s
Migration and Immigration in the 1990s and 2000s
- How Migration and Immigration Reshaped the United States after 1980
- Why the South and West Kept Growing
- Why Immigration from Latin America and Asia Increased
Challenges of the 21st Century
Challenges of the 21st Century
- How 21st-Century Challenges Tested American Power
- September 11 and the War on Terror
- Security, Civil Liberties, and Human Rights at Home
Causation in Period 9
Causation in Period 9
- How Change After 1980 Reshaped American National Identity
- Conservative Politics and the Contested Role of Government
- Economic, Technological, and Demographic Change
Notes
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