10m left·0%
Reading Time: 10 min
Last Updated: September 8, 2026
Main Ideas: 5
Reading Time: 10 min
Last Updated: September 8, 2026
Main Ideas: 5

Topic 8.6 Notes – Early Steps in the Civil Rights Movement (1940s and 1950s)

Verified for 2027 AP® U.S. History Exam
Read aloud
After World War II, the civil rights movement grew by trying to turn Reconstruction’s promises into real life. From the 1940s to 1960, activists used lawsuits, protests, churches, veterans’ demands, and pressure on presidents and courts to challenge segregation, even as white resistance kept progress slow.

How the Early Civil Rights Movement Grew After World War II

This movement was about making the 14th Amendment and 15th Amendment mean something in everyday life. Equal protection and voting rights had existed on paper since Reconstruction, but Jim Crow laws, disfranchisement, and racial violence kept Black Americans from full citizenship.

  • In the South, segregation was de jure. Law required it.
  • In the North and West, discrimination was often de facto. Custom, housing patterns, and job discrimination kept inequality going without the same set of segregation laws.

World War II sharpened the contradiction. The U.S. said it was fighting fascism and racism abroad, yet tolerated racism at home. The Black press answered with the Double V campaign. Victory overseas had to be matched by victory against white supremacy in America.

Black veterans came home expecting full rights. The 1946 beating and blinding of veteran Isaac Woodard helped push Truman toward civil rights action. Pressure had already worked once. In 1941, A. Philip Randolph threatened a March on Washington over discrimination in defense jobs and the military. FDR responded with Executive Order 8802, banning discrimination in defense industries, and created the Fair Employment Practice Committee.

Broader changes gave the movement strength:

  • Great Migration gave Black Americans more voting power and stronger city communities.
  • Black churches, NAACP branches, women’s groups, and labor networks gave organizers money, space, leadership, and communication.
  • The Cold War and decolonization mattered because segregation hurt America’s image in the “free world,” though Black demands had existed long before that.

The pattern to remember is legal action + grassroots pressure + federal response.

The Federal Government’s First Steps

The three branches all mattered, but not in the same way.

Harry Truman

Truman made civil rights a national issue. His President’s Committee on Civil Rights published To Secure These Rights in 1947. It called for anti-lynching laws, voting-rights protection, an end to poll taxes, fair employment, and military desegregation.

He then used executive power:

  • Executive Order 9980 ended discrimination in the federal civilian workforce.
  • Executive Order 9981 desegregated the armed forces.

The Korean War sped up military integration because the armed services needed manpower and efficiency.

Limits showed up fast. Southern Democrats revolted as Dixiecrats in 1948, led by Strom Thurmond, and blocked broader civil rights laws in Congress.

Congress under Eisenhower

Congress finally passed civil rights laws again, but they were weak.

  • Civil Rights Act of 1957
    • first civil rights law since Reconstruction
    • created the U.S. Commission on Civil Rights
    • created the Civil Rights Division in the Justice Department
    • had weak enforcement of voting rights
  • Civil Rights Act of 1960
    • required preservation of voting records
    • allowed federal referees when local officials blocked registration

These mattered more as a sign that the federal government was returning to civil rights than as immediate solutions.

The NAACP’s Legal Attack on Segregation

The NAACP and NAACP Legal Defense Fund tried to destroy Plessy v. Ferguson and its “separate but equal” doctrine by using the 14th Amendment.

Leaders and strategy

Charles Hamilton Houston and Thurgood Marshall used an incremental strategy. They first attacked obviously unequal graduate and professional schools, where states had a hard time pretending separate systems were equal.

Key cases before Brown:

  • Smith v. Allwright (1944) ended the white primary.
  • Morgan v. Virginia (1946) ended segregation on interstate buses.
  • Shelley v. Kraemer (1948) stopped courts from enforcing restrictive housing covenants.
  • Sweatt v. Painter (1950) said the separate Black law school in Texas was unequal.
  • McLaurin v. Oklahoma State Regents (1950) said isolating a Black graduate student within a white school was unconstitutional.

Brown v. Board of Education 1954

Oliver Brown sued for his daughter Linda Brown.

Study guide illustration

Oliver Brown and family

The case combined school cases from Kansas, South Carolina, Virginia, and Delaware, plus the related D.C. case Bolling v. Sharpe. Chief Justice Earl Warren wrote a unanimous decision saying “separate educational facilities are inherently unequal.” Social science, including Kenneth and Mamie Clark’s doll studies, supported the argument that segregation harmed children.

Brown II in 1955 ordered desegregation with “all deliberate speed,” which sounds strong but gave segregationists room to delay.

Grassroots Protest, Nonviolence, and White Resistance

Brown triggered massive white backlash.

  • Massive resistance became the Southern strategy.
  • The Southern Manifesto in 1956 denounced Brown.
  • States used pupil-placement laws, token integration, school closures, and segregation academies.
  • White Citizens’ Councils used economic pressure, while the KKK used terror.

Little Rock crisis 1957

That backlash was on full display at Little Rock Central High School, where federal troops escorted Black students into the building.

Study guide illustration

Little Rock school desegregation, 1957

Governor Orval Faubus used the Arkansas National Guard to block the Little Rock Nine. Eisenhower responded by federalizing the Guard and sending the 101st Airborne. In Cooper v. Aaron (1958), the Court said states had to obey Supreme Court rulings.

Racial violence as a mobilizer

The 1955 murder of Emmett Till shocked the nation. Mamie Till-Mobley insisted on an open-casket funeral, and Jet magazine’s photographs made the violence visible. An all-white jury acquitted the killers.

Montgomery Bus Boycott

Another famous image from this early phase of the movement shows Rosa Parks being fingerprinted after her arrest.

Study guide illustration

Rosa Parks after her arrest, 1955

The boycott began after Rosa Parks was arrested, but it rested on years of local organizing by Jo Ann Robinson, the Women’s Political Council, E. D. Nixon, and earlier resister Claudette Colvin. The Montgomery Improvement Association led a 381-day boycott using carpools, churches, and economic pressure. Martin Luther King Jr. emerged as a national leader. Browder v. Gayle desegregated the buses.

Organized nonviolence

King tied together Christianity, democratic ideals, and Gandhi’s methods. The SCLC formed in 1957 to coordinate church-based activism. CORE, founded in 1942, had already tested nonviolence in the Journey of Reconciliation in 1947. The Green Book showed how segregation shaped ordinary travel. The Greensboro sit-ins in 1960 led to SNCC, connecting this early phase to the larger 1960s movement.

What Changed by 1960 and What Had Not

By 1960, the movement had won major gains. The military was desegregated. Brown struck at legal segregation. Little Rock showed federal enforcement could matter. Congress had resumed civil rights legislation. The Montgomery model proved that mass nonviolent protest could work. SCLC and student activism had appeared.

But most Southern schools were still segregated. Black voting was still heavily suppressed. Housing and job discrimination continued across the country.

Key Takeaways

The early civil rights movement was an unfinished attempt to make Reconstruction amendments real.
WWII mattered because it exposed the hypocrisy of fighting racism abroad while protecting it at home.
Truman moved civil rights forward most through executive orders, not through Congress.
The NAACP weakened segregation step by step before winning Brown.
Brown was a legal revolution, but Brown II slowed implementation with “all deliberate speed.”
White resistance after Brown was organized, political, economic, and violent.
Montgomery worked because grassroots women organizers, churches, lawsuits, and boycotts all came together.
By 1960, the movement had built the leaders, tactics, court precedents, and federal involvement that made the bigger victories of the 1960s possible.

AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse this website.

Notes

1 credit used · 5/5 remaining