AP United States History, AP exams, 10–17%

Unit 8: Period 8, 1945–1980

Period 8 covers the Cold War abroad and the transformations of American society at home, from the civil rights movement to the conservative reaction of the 1970s. The exam asks students to connect foreign-policy commitments with domestic politics and culture. Movement strategies and their competing goals are especially common essay material.

Position: 8 of 9 units
Published weighting: 10–17% in the official framework
Topics covered: 8 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.

Origins and strategy of the Cold War: Containment, the Marshall Plan, NATO, Korea, and the nuclear arms race as a framework for policy debate.
Anticommunism at home: Loyalty programs, McCarthyism, and the effect of Cold War politics on dissent and civil liberties.
Postwar economy and suburbanization: The GI Bill, consumer abundance, suburban growth, and the racial exclusions embedded in postwar housing policy.
The civil rights movement: Brown, Montgomery, sit-ins and freedom rides, the 1964 and 1965 acts, and debates over nonviolence and Black Power.
Liberalism and the Great Society: Kennedy and Johnson domestic programs, the war on poverty, Medicare and Medicaid, and immigration reform.
Vietnam and the era of protest: Escalation, the antiwar movement, the counterculture, and the credibility gap between government and public.
Rights movements and the conservative turn: Feminist, Latino, American Indian, and gay rights activism alongside the backlash that reshaped the 1970s.
The 1970s: Watergate, stagflation, and limits: Economic shocks, distrust of institutions, and detente as a shift in Cold War strategy.

Study tips

How to practice Period 8.

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

Build a movement comparison table covering goals, tactics, and outcomes for each rights movement.
Pair every Cold War event abroad with a domestic consequence; the exam loves that link.
Practice periodization questions on whether 1945, 1968, or 1980 is the better turning point.

Where this fits

Unit 8: Period 8, 1945–1980 is 8 of 9 units in the AP United States History guide, and it carries a published weighting of 10–17% 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 8 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 1954 Supreme Court decision held that racially segregated public schools violate the Fourteenth Amendment's guarantee of equal protection?
1. ABrown v. Board of Education
2. BPlessy v. Ferguson
3. CLoving v. Virginia
4. DRegents of the University of California v. Bakke
Show answer
Answer: A. Brown v. Board of Education
A unanimous Court concluded that separate educational facilities are inherently unequal, rejecting the school segregation that Plessy had permitted. Plessy v. Ferguson is the tempting distractor because it set the doctrine at issue, but it was the 1896 decision that Brown overturned in the field of public education.
Key insight: Brown was the product of a long NAACP legal campaign, not an isolated ruling, and enforcement took another decade of struggle.
Question 2Foundational
Which 1947 pledge by President Truman promised American support to nations resisting communist pressure and became the foundation of containment?
1. AThe Marshall Plan
2. BThe Truman Doctrine
3. CThe Monroe Doctrine
4. DThe Eisenhower Doctrine
Show answer
Answer: B. The Truman Doctrine
Truman asked Congress for aid to Greece and Turkey and framed the request as a general commitment to support free peoples resisting armed subjugation. The Marshall Plan is the tempting distractor because it followed months later in the same strategy, but it was a program of economic reconstruction aid for Europe rather than a doctrine of political and military support.
Key insight: Containment linked economic aid, military alliance, and ideological argument into one long-running strategy.
Question 3Intermediate
Which 1965 law suspended literacy tests and sent federal examiners into counties with a record of racial discrimination in voter registration?
1. AThe Civil Rights Act of 1964
2. BThe Voting Rights Act of 1965
3. CThe Fair Housing Act of 1968
4. DThe Twenty-fourth Amendment
Show answer
Answer: B. The Voting Rights Act of 1965
Passed after the violence against marchers at Selma, the Voting Rights Act attacked the devices that had kept Black southerners off the rolls and produced a rapid rise in registration and Black officeholding. The Civil Rights Act of 1964 is the tempting distractor, but it targeted segregation in public accommodations and discrimination in employment rather than registration practices.
Key insight: Pair each civil rights law with the specific barrier it removed; that precision is what earns evidence credit.
Question 4Intermediate
Which pair of health programs, one for Americans over sixty-five and one for people with low incomes, was created in 1965 as part of Lyndon Johnson's Great Society?
1. ASocial Security and unemployment insurance
2. BMedicare and Medicaid
3. CHead Start and the Job Corps
4. DThe Peace Corps and VISTA
Show answer
Answer: B. Medicare and Medicaid
Medicare covers hospital and medical costs for older Americans, while Medicaid is a joint federal and state program for people with low incomes, and Johnson signed both in 1965. Head Start and the Job Corps are tempting distractors because they were Great Society programs too, but they addressed early education and job training rather than health coverage.
Key insight: The Great Society extended the New Deal's insurance principle from retirement income to medical care.
Question 5Advanced
Which 1964 congressional resolution gave President Johnson broad authority to use military force in Southeast Asia without a declaration of war?
1. AThe War Powers Resolution
2. BThe Gulf of Tonkin Resolution
3. CThe Geneva Accords
4. DThe Paris Peace Accords
Show answer
Answer: B. The Gulf of Tonkin Resolution
After reported attacks on American destroyers, Congress authorized the president to take all necessary measures, and Johnson treated it as approval for escalation without a further vote. The War Powers Resolution is the tempting distractor because it addresses the same problem, but Congress passed it in 1973 to limit presidential war-making after Vietnam.
Key insight: Vietnam widened the credibility gap between what officials said publicly and what the public later learned.

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Unit 8: Period 8, 1945–1980