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Edexcel IGCSE History: A Divided Union, Civil Rights in the USA, 1945–74 — Revision Notes

Condensed notes on the USA, 1945–74 for Edexcel IGCSE History 4HI1: timeline, protest and legislation linked, King v Malcolm X, key terms and common exam traps.

Level
IGCSE
Topic
Paper 1 – Depth Studies (choose at least 2 of 8)
Updated

Aligned to Pearson Edexcel IGCSE World History (4HI1), Issue 5, February 2026. Official specification .

Syllabus page (what it covers and how it is assessed): Pearson Edexcel IGCSE World History.

Syllabus points this page covers

4HI1

  • 1 Paper 1 – Depth Studies (choose at least 2 of 8) (whole topic)
  • 1.7 A Divided Union: Civil Rights in the USA, 1945–74

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Quick-recall notes for Depth Study 7 of Pearson Edexcel International GCSE History 4HI1 Paper 1, “A divided union: civil rights in the USA, 1945–74”. Full explanations are in the civil rights study guide; practise with the civil rights practice questions.

Syllabus coverage (4HI1, Depth Study 7)

Key topic Core content
1. Red Scare and McCarthyism Causes, Hiss, Rosenbergs, FBI, HUAC, Hollywood Ten, McCarthy’s methods and fall
2. Civil rights in the 1950s Segregation, courts, Brown, Till, Montgomery, Little Rock, 1957 Act, KKK
3. Protest, 1960–74 Sit-ins, Freedom Rides, Meredith, King, Birmingham, Washington, Freedom Summer, Selma, Malcolm X, Black Power, Watts, Panthers
4. Other protest movements Students, anti-war, Berkeley, SDS, hippies, Friedan, NOW, women’s liberation, Schlafly
5. Nixon and Watergate Scandal, resignation, new laws, Ford’s pardon

Timeline

Date Event
1947 HUAC hearings on Hollywood; Hollywood Ten
1950 Hiss convicted of perjury; McCarthy’s first accusations; Korean War
1953 Rosenbergs executed
May 1954 Brown v Board of Education
Dec 1954 McCarthy censured by the Senate
Aug 1955 Murder of Emmett Till
Dec 1955–Dec 1956 Montgomery Bus Boycott
1957 Little Rock; Civil Rights Act 1957
Feb 1960 Greensboro sit-in
May 1961 Freedom Rides; Anniston bus fire-bombed
1962 James Meredith at the University of Mississippi
Apr–May 1963 Birmingham Campaign
Aug 1963 March on Washington; “I have a dream”
1963 The Feminine Mystique published
Summer 1964 Mississippi Freedom Summer; Civil Rights Act 1964
1964 Berkeley Free Speech Movement
Feb 1965 Malcolm X assassinated
Mar 1965 Selma marches
Aug 1965 Voting Rights Act; Watts riots
1966 Carmichael and “Black Power”; Black Panthers founded; NOW founded
Apr 1968 King assassinated
Oct 1968 Mexico City Olympics protest
June 1972 Watergate break-in
Jan 1973 Roe v Wade
1973 War Powers Act
9 Aug 1974 Nixon resigns; Ford pardons him in September

Protest and the law: what caused what?

Protest Federal response
NAACP legal campaign Brown v Board (1954)
Montgomery Bus Boycott Supreme Court bans bus segregation (1956)
Little Rock crisis Federal troops; Civil Rights Act 1957
Freedom Rides Interstate travel desegregation enforced (1961)
Birmingham and the March on Washington Civil Rights Act 1964
Freedom Summer and Selma Voting Rights Act 1965

King and Malcolm X compared

Martin Luther King Malcolm X
Aim Integration and equal rights Black pride; separation (until 1964)
Method Non-violent direct action Self-defence “by any means necessary”
Base Southern churches, SCLC Northern cities, Nation of Islam
Strength Won national sympathy and laws Spoke to urban anger; inspired Black Power

Key terms

Term Meaning
Red Scare Fear of communist infiltration
HUAC House Un-American Activities Committee
McCarthyism Reckless accusations of communism without evidence
Jim Crow Southern segregation laws
NAACP National Association for the Advancement of Colored People
De jure / de facto segregation Segregation by law / in practice
Direct action Protest such as boycotts, sit-ins and marches
Black Power Movement for black pride, self-reliance and self-defence
NOW National Organization for Women (1966)
Impeachment Formal charge against a president by Congress

Worked example: two effects

Explain two effects of the Birmingham Campaign (1963).

  1. National outrage: television pictures of police dogs and hoses used on children shocked Americans and the world, turning opinion further against segregation.
  2. Federal action: Kennedy announced a civil rights bill in June 1963, which became the Civil Rights Act 1964 under Johnson.

Essay plan in outline

“Federal government action was the main reason for civil rights progress in the years 1954–65.” How far do you agree?

  • Paragraph 1 (stated factor): the Supreme Court in Brown (1954); Eisenhower’s troops at Little Rock (1957); Kennedy’s civil rights bill; Johnson’s Civil Rights Act (1964) and Voting Rights Act (1965).
  • Paragraph 2 (protest): Montgomery, sit-ins, Freedom Rides, Birmingham and Selma forced reluctant presidents to act.
  • Paragraph 3 (media and opponents): television coverage of violence by Connor and others turned public opinion.
  • Conclusion: federal action made change law; protest made federal action happen.

Common mistakes and exam traps

  • Treating 1954 as the end of segregation. Brown set no deadline; resistance continued for years.
  • Confusing the 1957, 1964 and 1965 Acts. 1957 = Commission, weak; 1964 = public places and employment; 1965 = voting.
  • Describing King only. Questions often ask you to weigh King against others.
  • Ignoring the North. Watts and the Black Panthers show problems outside the South.
  • Forgetting topic 5. Watergate and its laws are examinable; learn the four Acts.

Frequently asked questions

Why did McCarthy fall? Television exposed his bullying in the Army–McCarthy hearings, and the Senate censured him in 1954.

Why did Black Power grow after 1965? Slow change in Northern cities, poverty, police violence, the assassination of Malcolm X and frustration with non-violence.

What did Watergate change? It forced Nixon’s resignation and led Congress to limit presidential power and protect privacy.

Source

Pearson Edexcel International GCSE History (4HI1) specification, Issue 5, February 2026, Paper 1, Depth Study 7.

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