A3, key topic 2 - Increased social tensions in the 1920s
The USA in the 1920s is often remembered through prosperity, cars, jazz, cinema and consumer goods. This lesson looks at the other side of the same decade: arguments about who counted as truly American, how far old moral rules should survive, and whether law and order protected society or exposed prejudice.
The focus is not the whole American economy or the later Depression. It is the social tension inside 1920s America: immigration restriction, the Red Scare, Sacco and Vanzetti, racism and the Ku Klux Klan, the Monkey Trial, and Prohibition with gangsters.
Tensions Under Prosperity
Social tension grew because the 1920s changed America unevenly. Some people celebrated a modern, urban, consumer society. Others saw modern America as a threat to religion, racial hierarchy, national identity and traditional morality. Prosperity did not remove those anxieties. In some ways, it made them sharper because the new culture was more visible.
One useful word is nativism. In 1920s America, nativism overlapped with fears of radical politics, racism, anti-Catholicism, anti-Semitism and suspicion of people from southern and eastern Europe.
Nativism
Nativism is hostility towards immigrants, often based on the belief that native-born citizens are more truly national than newcomers.
The main tensions in this key topic can be organised like this:
| Area of tension | Who or what was feared by some Americans? | Why it mattered |
|---|---|---|
| Immigration | Newer immigrants, especially from southern and eastern Europe, and Asian migrants excluded by law | Immigration was linked to fears about jobs, culture, religion and radical politics |
| Radical politics | Communists, anarchists, socialists and labour activists | The 1917 Russian Revolution and postwar strikes made some Americans fear revolution |
| Race | Black Americans demanding safety, opportunity and dignity | Jim Crow, racial violence and the Great Migration exposed how limited equality remained |
| Religion and science | Evolution, secular education and modern intellectual life | The Scopes or "Monkey" Trial made a school lesson into a national culture war |
| Morality and law | Alcohol, speakeasies, bootlegging and changing leisure habits | Prohibition tried to enforce old moral values, but often created lawbreaking and organised crime |
These issues were connected by a larger question: what should America become after the First World War? A rural Protestant traditionalist, an Italian immigrant worker, a Black family leaving the South, a city nightclub owner and a federal official hunting radicals could all be living in the same country but imagining very different Americas.
Misconception check: the 1920s were not simply "modern people versus old-fashioned people." Many people were selective. Someone might support cars and radios but oppose immigration; support Prohibition but ignore speakeasies; oppose communism but also worry about civil liberties. Social tension grew because these positions cut across class, region, religion and race.
Immigration And Red Scare
After the First World War, many Americans wanted "normalcy": less foreign entanglement, less social disruption and more control over who entered the country. Immigration became a central target. The fear was not only that immigrants might take jobs. Nativists argued that newer arrivals might bring different languages, religions, customs and political ideas.
This became law through quota systems.
| Law | Main restriction | Why it increased tension |
|---|---|---|
| Emergency Quota Act, 1921 | Limited annual immigration from each country to 3 percent of the number of foreign-born people from that country living in the USA in 1910 | It made national origin a basis for entry into the United States |
| Immigration Act, 1924 | Made quotas stricter: 2 percent of each nationality's foreign-born population in the USA in 1890, producing an immediate annual quota of 164,667 | The 1890 base favoured northern and western Europeans because it predated many later arrivals from southern and eastern Europe |
| Asian exclusion in 1924 | Japanese immigration was excluded, adding to earlier Asian exclusion policies | It showed that immigration policy was shaped by race as well as numbers |
The Red Scare made immigration seem even more frightening to many Americans. The Bolshevik Revolution in Russia in 1917 created fears that communism might spread. In 1919, strikes, race riots, economic uncertainty and anarchist bombings made some newspapers and politicians warn that the United States itself was in danger from revolution.
Attorney General A. Mitchell Palmer responded with raids against suspected radicals. J. Edgar Hoover helped organise intelligence on radical groups. In late 1919 and early 1920, federal agents and local police arrested suspected anarchists, communists and foreign-born radicals. Some, including Emma Goldman and Alexander Berkman, were deported to Russia on a ship nicknamed the "Soviet Ark" by the press.
The Palmer Raids reveal why the Red Scare was a social tension, not just a security policy. There had been real bombings and real political violence. But the response often treated immigrant identity and radical beliefs as if they were proof of danger. Many arrests were criticised for poor evidence, poor warrants and disregard for civil liberties.
A strong explanation therefore needs both sides:
| Fear | Evidence that made it seem plausible | Why the response was controversial |
|---|---|---|
| Radical revolution | Russian Revolution, strikes, anarchist bombings, labour unrest | Suspicion fell broadly on immigrants and political dissenters, not just proven criminals |
| Foreign influence | Some radical groups included recent immigrants and foreign-language newspapers | Many immigrants were not radicals, and many radicals had committed no violent crime |
| Disorder after war | Inflation, unemployment, strikes and racial violence created a crisis mood | Politicians could use fear to justify overreaction |
Exam thinking: avoid writing as if America invented fear from nothing. A better answer says that postwar violence and revolution abroad created genuine anxiety, but that nativism turned that anxiety into suspicion of whole immigrant communities.
Sacco And Vanzetti
The Sacco and Vanzetti case became one of the clearest examples of how anti-immigrant and anti-radical feeling shaped the 1920s. Nicola Sacco and Bartolomeo Vanzetti were Italian immigrants and anarchists. In 1920, they were arrested for a payroll robbery and murder at Braintree, Massachusetts. They were convicted in 1921 and executed in 1927 after years of appeals and international protest.
The case is important for Edexcel because it connected several tensions in one event:
| Factor | Why it mattered in the case |
|---|---|
| Immigrant background | Sacco and Vanzetti were Italian-born at a time when southern and eastern European immigrants faced strong suspicion |
| Radical politics | They were anarchists, so their beliefs made them seem dangerous during the Red Scare |
| Criminal trial | The legal question was whether they had committed robbery and murder |
| Public controversy | Supporters argued that they were being punished for who they were and what they believed, not only for the evidence |
| International reaction | The case drew protests outside the United States, making it a symbol of American prejudice to critics abroad |
It is important to be precise. Historians still discuss the evidence and the exact guilt of Sacco and Vanzetti. For this lesson, the key issue is not to retry the whole case. The key issue is why the case became so explosive. It seemed to many observers that the justice system could not separate criminal evidence from prejudice against immigrants and radicals.
The timing made this more powerful. Sacco and Vanzetti were arrested in 1920, just after the Palmer Raids and at the height of Red Scare anxiety. Their trial began in 1921, the same year the Emergency Quota Act began restricting immigration. They were executed in 1927, after the 1924 Immigration Act had made nativism federal policy. Their story therefore sat inside a wider pattern of suspicion.
A model mini-paragraph:
The Sacco and Vanzetti case increased social tension because it made anti-immigrant prejudice visible inside the justice system. Sacco and Vanzetti were Italian immigrants and anarchists, so many Americans already associated them with the radical threat feared during the Red Scare. Although they were tried for murder and robbery, supporters argued that the evidence was weak and that their political beliefs shaped the verdict. The case therefore became a symbol of the way nativism and fear of radicalism could damage trust in American law.
Race And The KKK
Attitudes towards Black Americans were another source of tension. The end of slavery and the constitutional changes after the Civil War had not created equality in everyday life. In the South, Jim Crow laws enforced segregation and Black Americans faced violence, intimidation and political exclusion. Lynching and the threat of racial violence were part of the background to many Black families' decisions to leave the South.
The Great Migration changed where racial tension was visible. From 1910 to 1940, large numbers of Black southerners moved to northern and midwestern cities such as New York, Chicago, Detroit and Pittsburgh. They moved to escape Jim Crow and violence, and to seek better jobs and education. But migration did not mean freedom from racism. In northern cities, Black Americans still faced housing discrimination, job competition, hostility and sometimes violence. The Red Summer of 1919 showed how racial tension could erupt in cities outside the South as well as inside it.
The Ku Klux Klan made these attitudes more organised and intimidating. The second Klan was revived in 1915 and grew rapidly in the early 1920s. It claimed millions of members by the mid-1920s. It was white supremacist and hostile to Black Americans, but its hatred was wider than race alone: it also attacked Catholics, Jews, immigrants, radicals, bootleggers and anyone it labelled un-American.
The 1920s Klan mattered because it was not only a secret violent group on the margins. It presented itself as patriotic, Protestant, moral and respectable. It held parades, recruited through local networks and influenced politics in some states. This made it more dangerous. Its ideas could be normalised as "100 percent Americanism" even when they rested on racism, intimidation and exclusion.
Continue this lesson.
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