Between 1917 and 1921, white supremacist mobs unleashed a wave of violence against Black communities across the United States, with 1919's "Red Summer" and the 1921 Tulsa Race Massacre as the most severe outbreaks. African Americans fought back through political activism, published writing, and armed self-defense, while many left the South in the early stages of the Great Migration.
Why This Matters for the AP African American Studies Exam
This topic builds your ability to explain causation, which is a core skill on the AP African American Studies exam. You need to connect specific causes (returning Black veterans, job competition, the 1918-19 flu pandemic, and white resentment of Black success) to specific effects (race riots, harmed wealth, and migration north).
It also gives you required sources to analyze. Claude McKay's poem "If We Must Die" and the three Tulsa Race Massacre photographs are evidence you can use to support arguments about resistance, racial violence, and the loss of Black wealth. Practice reading these sources for tone, message, and historical context, since source analysis shows up throughout the exam.

Key Takeaways
- The "Red Summer" of 1919, a term coined by James Weldon Johnson, saw more than 30 urban race riots in a single summer.
- Causes of the violence between 1917 and 1921 included a global flu pandemic, competition for jobs, and discrimination against Black World War I veterans.
- The 1921 Tulsa Race Massacre harmed more than 1,250 homes and businesses in Greenwood, known as "Black Wall Street," one of the most affluent Black communities in the country.
- This racial violence blocked many Black families from building and passing down wealth and property.
- African Americans resisted through political activism, published accounts, and armed self-defense.
- This violence and the lack of economic opportunity in the South helped spark the beginnings of the Great Migration.
White Supremacist Violence and the Red Summer
From 1917 to 1921, the United States saw a surge in white supremacist violence aimed at Black communities. The most intense moment came in the summer of 1919, which the writer and activist James Weldon Johnson named the "Red Summer." That summer alone, more than 30 urban race riots broke out across the country.
This period sits inside the "nadir," the low point of American race relations that stretched from the end of Reconstruction to World War II. The violence here is closely tied to other Unit 3 topics: it pushed forward the Great Migration (Topic 3.16) and shaped the cultural energy of the Harlem Renaissance (Topic 3.11), where Claude McKay was a key figure.
Causes of the Violence
Several pressures combined between 1917 and 1921 to fuel white supremacist attacks.
- Returning Black World War I veterans. Black soldiers had served the country, then came home to racial violence and discrimination. Their demand for full citizenship and respect provoked white backlash.
- Competition for jobs. As African Americans moved into Northern and Midwestern cities, competition for work and housing sharpened racial tensions.
- The 1918-1919 flu pandemic. The global flu pandemic caused widespread illness and death, adding to social strain.
- White resentment of Black success. In places like Greenwood, the prosperity of Black-owned businesses fueled hostility from white residents.
The Tulsa Race Massacre (1921)
In 1921, a mob of white residents and city officials incited the Tulsa Race Massacre in Tulsa, Oklahoma. The attack targeted the Greenwood District, known as "Black Wall Street," which was one of the most affluent African American communities in the United States.
- More than 1,250 homes and businesses were harmed.
- Greenwood's Black banks, shops, and homes were burned to the ground.
- The destruction of Black property and businesses during this era prevented many African American families from building and passing down generational wealth.
A lasting takeaway here: racial violence in the twentieth century did not just harm and displace people in the moment. It also blocked the long-term transfer of wealth and property across Black families, widening economic gaps that lasted for generations.
How African Americans Responded
Black communities did not simply absorb these attacks. They resisted in several ways.
- Political activism. African Americans organized and pushed for legal protections and anti-lynching efforts.
- Published accounts. Writers and journalists documented the violence and challenged the racism behind it. Claude McKay's poem "If We Must Die" is a clear example of resistance through writing.
- Armed self-defense. Some African Americans took up arms to protect their homes and communities from mob attacks.
The Beginnings of the Great Migration
Racial discrimination and violence, combined with the lack of economic opportunity in the South, helped spark the beginnings of the Great Migration. Many Black families left the Jim Crow South in search of safety and better jobs in the North, Midwest, and West. You will study this movement in much more depth in Topic 3.16.
Required Sources
"If We Must Die" by Claude McKay, 1919
Claude McKay, a Jamaican poet and key figure in the Harlem Renaissance, wrote "If We Must Die" during the Red Summer of 1919. The poem encouraged African Americans to preserve their dignity and fight back against anti-Black violence and discrimination. Its defiant tone made it an enduring symbol of Black resistance.
When you analyze this source, notice how the speaker reframes dying as something done with honor and courage rather than helplessness. The repeated call to "fight back" connects directly to the required theme of armed self-defense and resistance.
If we must die, let it not be like hogs Hunted and penned in an inglorious spot, While round us bark the mad and hungry dogs, Making their mock at our accursèd lot. If we must die, O let us nobly die, So that our precious blood may not be shed In vain; then even the monsters we defy Shall be constrained to honor us though dead! O kinsmen! we must meet the common foe! Though far outnumbered let us show us brave, And for their thousand blows deal one death-blow! What though before us lies the open grave? Like men we'll face the murderous, cowardly pack, Pressed to the wall, dying, but fighting back!
Photograph of the Greenwood District Burning During the Tulsa Race Massacre, 1921
Photograph of Black Men with Hands Raised During the Tulsa Race Massacre, 1921
Photograph of Destruction in Greenwood After the Tulsa Race Massacre, 1921
When you analyze the three Tulsa photographs, think about what each one shows: active destruction, Black residents detained with hands raised, and the ruins left behind. Together they document both the violence and its aftermath, and they support arguments about lost Black wealth and the failure to protect Black lives and property.
How to Use This on the AP African American Studies Exam
Using Sources Effectively
Practice describing what "If We Must Die" argues and how McKay makes that argument. Tie the poem's tone to its 1919 context. For the Tulsa photographs, state what you see, then explain what it reveals about racial violence and its impact on Black communities.
Causation
Be ready to explain why racial violence spiked between 1917 and 1921. Connect specific causes (Black veterans, job competition, the flu pandemic, resentment of Black success) to specific outcomes (race riots, the Tulsa Race Massacre, lost wealth, and migration).
Continuity and Change
Use this topic to show how violence pushed change. The same conditions that fueled attacks also pushed the start of the Great Migration, which then fed Northern Black communities and the Harlem Renaissance.
Common Trap
Do not stop at describing the violence. The required content also asks you to explain how African Americans responded, so always pair the attacks with resistance: political activism, published accounts, and armed self-defense.
Common Misconceptions
- The Red Summer and the Tulsa Race Massacre are not the same event. The Red Summer refers to the wave of riots in 1919. The Tulsa Race Massacre happened in 1921. Both fall inside the larger 1917 to 1921 surge of violence.
- "Red Summer" does not refer to communism. James Weldon Johnson coined the term to describe the bloodshed of that summer, not political ideology.
- These were not equal "riots" or "clashes." They were largely organized attacks by white mobs, sometimes including city officials, against Black communities.
- African Americans were not passive victims. They resisted through activism, writing, and armed self-defense, and many chose to leave the South entirely.
- Black Wall Street's wealth was real and significant. Greenwood was one of the most affluent Black communities in the country, which is part of why its destruction had such lasting economic effects.
Related AP African American Studies Guides
Vocabulary
The following words are mentioned explicitly in the College Board Course and Exam Description for this topic.Term | Definition |
|---|---|
armed self-defense | The use of weapons and force by African Americans to protect themselves and their communities against white supremacist violence. |
Black Wall Street | A nickname for Greenwood in Tulsa, Oklahoma, referring to one of the most affluent African American communities in the early twentieth-century United States. |
Great Migration | The movement of approximately six million African Americans from the South to the North, Midwest, and western United States in waves from the 1910s to 1970s in search of economic opportunities and safety. |
Greenwood | A prosperous African American neighborhood in Tulsa, Oklahoma, also known as 'Black Wall Street,' that was destroyed during the 1921 Tulsa race massacre. |
hate crimes | Violent acts or offenses committed against individuals or groups motivated by prejudice based on race, ethnicity, or other characteristics. |
political activism | Organized efforts by African Americans to advocate for civil rights and challenge systemic racism through political engagement and advocacy. |
racial discrimination | Systemic and individual acts of unfair treatment based on race, limiting opportunities and rights for African Americans. |
racial violence | Physical harm, intimidation, and brutality perpetrated against people because of their race. |
Red Summer | The period in the summer of 1919 marked by a proliferation of racial violence and urban race riots across the United States. |
Tulsa race massacre | A 1921 violent attack by white residents and city officials on the Black community of Greenwood in Tulsa, Oklahoma, resulting in the destruction of over 1,250 homes and businesses. |
urban race riots | Large-scale violent conflicts between racial groups occurring in cities, often triggered by racial tensions and discrimination. |
wealth transfer | The passing of accumulated financial assets and property from one generation to the next, which housing discrimination limited for African American families. |
white supremacist attacks | Violent actions and assaults perpetrated by white supremacists against African American communities and individuals based on racial ideology. |
white supremacists | Individuals or groups who believe in the superiority of white people and work to maintain or establish white dominance through violence and discrimination. |
Frequently Asked Questions
What was the Red Summer of 1919?
The Red Summer was a period of more than 30 urban race riots in 1919 during a larger surge of white supremacist violence from 1917 to 1921. James Weldon Johnson coined the term.
What caused the Red Summer?
CED-listed causes include the 1918-1919 flu pandemic, competition for jobs, and racial discrimination against Black World War I veterans. These pressures intensified white supremacist attacks on Black communities.
What happened during the Tulsa Race Massacre?
In 1921, white residents and city officials incited the Tulsa Race Massacre against Greenwood, also known as Black Wall Street. More than 1,250 homes and businesses were harmed, damaging Black wealth and property.
How did African Americans respond to white supremacist attacks?
African Americans resisted through political activism, published accounts, and armed self-defense. Claude McKay’s If We Must Die is a required source that shows resistance through poetry and public voice.
How does this topic connect to the Great Migration?
Racial discrimination, violence, and limited economic opportunity in the South helped spur the beginnings of the Great Migration. This topic explains part of why many Black families left for Northern, Midwestern, and Western cities.
What sources should I know for Topic 3.6?
Know Claude McKay’s If We Must Die and the three Tulsa Race Massacre photographs. Use the poem for tone and message, and use the photographs as visual evidence of the attack on Greenwood and its aftermath.


