AP United States History, AP exams, 4–6%

Unit 9: Period 9, 1980–present

Period 9 covers the conservative resurgence, the end of the Cold War, globalization, and the challenges of the twenty-first century. Its exam weight is small, but it supplies the endpoint for continuity and change essays that run into the present. Many students underprepare it simply because it comes last in the school year.

Position: 9 of 9 units
Published weighting: 4–6% in the official framework
Topics covered: 5 topics in this guide

What is covered

Topics inside this unit.

These topics describe the scope students most often review for this part of AP United States History. Treat them as a study checklist rather than an exhaustive list of what a single exam form can sample.

The conservative movement and Reagan: Tax and deregulation policy, the religious right, and debates over the size and role of government.
The end of the Cold War: Renewed confrontation, arms agreements, the collapse of the Soviet bloc, and the questions a post-Cold War order raised.
A changing economy: Deindustrialization, service and technology growth, free-trade agreements, and rising economic inequality.
Migration and demographic change: Post-1965 immigration patterns, growing Latino and Asian American populations, and political conflict over immigration policy.
Twenty-first century challenges: September 11 and the response to terrorism, the 2008 financial crisis, and continuing debates over rights and security.

Study tips

How to practice Period 9.

Section-specific guidance that follows from how this material is usually tested.

Study this period early rather than in the final week; its low weight tempts students to skip it entirely.
Use it as the closing evidence in continuity and change essays that begin much earlier.
Keep claims about recent decades analytical rather than partisan; rubrics reward evidence, not opinion.

Where this fits

Unit 9: Period 9, 1980–present is 9 of 9 units in the AP United States History guide, and it carries a published weighting of 4–6% in the official framework. Use the full guide to balance it against everything else you have to review.

Back to the AP United States History guide Official exam information

Sample Period 9 questions

Practice questions, not yet expert-reviewed

Original practice questions written to the published framework for this section. No expert has reviewed them, and they are not taken from any official exam. Try each one before you open the answer.

Question 1Foundational
Which event of November 1989 became the symbol of the collapse of communist control in Eastern Europe?
1. AThe fall of the Berlin Wall
2. BThe signing of the Helsinki Accords
3. CThe Cuban missile crisis
4. DThe Bay of Pigs invasion
Show answer
Answer: A. The fall of the Berlin Wall
East Germany opened its border crossings on November 9, 1989, crowds began dismantling the wall, and German reunification followed in 1990. The Helsinki Accords are the tempting distractor because they also concerned the Cold War in Europe, but they were a 1975 agreement on borders and human rights.
Key insight: The Cold War ended through a chain of events in Eastern Europe as much as through superpower negotiation.
Question 2Foundational
Which economic theory behind Ronald Reagan's 1981 tax cuts held that reducing taxes on income and investment would stimulate production and growth?
1. AKeynesian demand management
2. BSupply-side economics
3. CMercantilism
4. DWage and price controls
Show answer
Answer: B. Supply-side economics
Supply-side theory argued that high marginal rates discouraged work and investment, so cutting them would enlarge the economy, and Reagan paired the cuts with deregulation and reductions in domestic spending. Keynesian demand management is the tempting distractor because it also uses tax policy, but it aims to raise consumer demand during downturns rather than to increase incentives to produce.
Key insight: The conservative resurgence was an argument about the size and purpose of government, not only about tax rates.
Question 3Intermediate
Which agreement that took effect in 1994 removed most trade barriers among the United States, Canada, and Mexico?
1. AThe General Agreement on Tariffs and Trade
2. BThe North American Free Trade Agreement
3. CThe Trans-Pacific Partnership
4. DThe Bretton Woods agreement
Show answer
Answer: B. The North American Free Trade Agreement
The agreement created a continental free-trade zone, and the debate over it split both parties, with organized labor warning of manufacturing job losses and supporters predicting cheaper goods and export growth. The General Agreement on Tariffs and Trade is the tempting distractor because it also lowered trade barriers, but it was a global postwar framework that preceded the World Trade Organization.
Key insight: Trade policy became the clearest domestic flashpoint of globalization in the 1990s.
Question 4Intermediate
Which 1986 law combined penalties on employers who knowingly hired unauthorized workers with legal status for immigrants who had lived in the United States continuously since 1982?
1. AThe Immigration Act of 1924
2. BThe Immigration and Nationality Act of 1965
3. CThe Chinese Exclusion Act
4. DThe Immigration Reform and Control Act of 1986
Show answer
Answer: D. The Immigration Reform and Control Act of 1986
Congress tried to slow unauthorized migration by making the workplace the point of enforcement while granting legal status to roughly three million long-resident immigrants, and neither half of that bargain settled the argument. The Immigration and Nationality Act of 1965 is the tempting distractor because it reshaped immigration even more profoundly, but it belongs to Period 8, where it replaced national-origins quotas with preferences for family reunification and occupational skills.
Key insight: Post-1965 arrivals from Asia and Latin America made immigration a standing political question, and the 1986 law set the terms of enforcement and legalization that later fights kept reopening.
Question 5Advanced
Which law passed weeks after the September 11, 2001 attacks expanded federal surveillance and investigative powers in terrorism cases?
1. AThe Homeland Security Act
2. BThe USA PATRIOT Act
3. CThe National Security Act
4. DThe Foreign Intelligence Surveillance Act
Show answer
Answer: B. The USA PATRIOT Act
Congress passed the act in October 2001, easing limits on wiretaps, records searches, and information sharing among agencies, and critics argued that it traded civil liberties for security. The Homeland Security Act is the tempting distractor because it responded to the same attacks, but it passed in 2002 and created the Department of Homeland Security.
Key insight: Every major security crisis in United States history has reopened the same argument between liberty and safety.

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Unit 9: Period 9, 1980–present