AP U.S. History Unit 7 covers 1890 to 1945: Progressive reform, American imperialism, World War I, the 1920s, immigration restriction, cultural conflict, the Great Depression, New Deal programs, World War II mobilization, civil liberties, migration, and the United States' rise as a global power.
AP U.S. History Unit 7 is about how the United States responded to modern industrial society, overseas expansion, economic crisis, and global war between 1890 and 1945. Students should understand how Progressives expanded government regulation, how the United States became an imperial and world power, how the 1920s created cultural conflict, how the Great Depression led to the New Deal, and how World War II transformed the economy, migration patterns, civil liberties, and federal authority.
Unit 7 connects reform, foreign policy, economics, and war through one central question: how should the United States respond to modern power? Progressives wanted government to regulate corporations, cities, food, labor, and political corruption. Imperialists wanted overseas markets, naval bases, and influence. The New Deal used federal power to fight economic collapse. World War II mobilized the economy on a national scale. Unit 7 is strongest when students explain how federal power grew and why Americans disagreed about that growth.
| Unit 7 Theme | What Students Should Understand | Why It Matters on the Exam |
|---|---|---|
| Reform | Progressives used government to address problems from industrialization, urbanization, and corporate power. | Supports questions about continuity from Unit 6 and change in federal regulation. |
| Empire | The United States expanded overseas influence through war, diplomacy, markets, and military power. | Supports comparison questions about isolationism, intervention, and global power. |
| Culture | The 1920s exposed conflict over race, gender, religion, immigration, consumer culture, and modern values. | Supports source analysis and cultural conflict questions. |
| Economic Crisis | The Great Depression pushed federal government into relief, recovery, regulation, and welfare policies. | Supports causation and change-over-time questions about the New Deal. |
| War Mobilization | World War II transformed the economy, labor force, migration, civil liberties, and U.S. global position. | Supports home front and foreign policy questions. |
Progressivism was a broad reform movement that tried to use government, expertise, journalism, and activism to solve modern problems.
Reformers wanted trusts, railroads, meatpacking, and corporate abuses regulated. Theodore Roosevelt's Square Deal, trust-busting cases, the Pure Food and Drug Act, and the Meat Inspection Act showed a stronger federal regulatory role.
Initiatives, referendums, recalls, direct primaries, city-manager reforms, and the Seventeenth Amendment reflected efforts to weaken political machines, party bosses, and corporate influence.
Reformers such as Jane Addams supported settlement houses, education, public health, immigrant assistance, child labor restrictions, and safer working conditions. These reforms linked private activism to public policy.
Progressives did not all agree. Some focused on democracy, some on efficiency, some on labor, some on moral reform, some on women's suffrage, some on conservation, and some supported racist or exclusionary policies. A strong answer explains what specific problem a reformer was trying to solve and who benefited or was left out.
By the late 1800s, the United States moved more aggressively into overseas expansion. Supporters argued that the nation needed markets, naval bases, raw materials, strategic power, missionary influence, and a place among world empires. Critics argued imperialism violated republican ideals, denied self-government, and contradicted the nation's anti-colonial origins.
| Imperialism Topic | What Happened | Exam Meaning |
|---|---|---|
| Spanish-American War | The United States defeated Spain and gained influence over Cuba, Puerto Rico, Guam, and the Philippines. | Marked the United States as an overseas imperial power. |
| Philippine-American War | Filipino resistance challenged U.S. control after the Spanish-American War. | Shows conflict between empire and self-determination. |
| Open Door Policy | The United States sought equal trading access in China. | Shows economic imperialism without direct colonization. |
| Roosevelt Corollary | The United States claimed a police-power role in the Western Hemisphere. | Shows expanded U.S. intervention in Latin America. |
| Panama Canal | The United States supported Panama's separation from Colombia and built a canal zone. | Shows strategic, military, and commercial expansion. |
World War I tested American neutrality, democracy, civil liberties, and global ambition. Wilson first argued for neutrality, then entered the war in 1917 after submarine warfare, the Zimmermann Telegram, and economic ties made neutrality harder to maintain. The war expanded federal power through conscription, propaganda, economic planning, and restrictions on dissent.
| World War I Topic | What Students Should Know | Exam Use |
|---|---|---|
| Neutrality | The United States tried to stay out but traded heavily with the Allies. | Use for causes of intervention. |
| Submarine warfare | German attacks on shipping pushed the United States toward war. | Use for immediate causes of U.S. entry. |
| Committee on Public Information | Government propaganda encouraged support for the war. | Use for federal power and public opinion. |
| Espionage and Sedition Acts | Laws restricted antiwar speech and dissent. | Use for civil liberties during wartime. |
| Fourteen Points | Wilson promoted self-determination, open diplomacy, free trade, and a League of Nations. | Use for idealism and postwar internationalism. |
| Senate rejection of Treaty of Versailles | The United States refused to join the League of Nations. | Use for tension between internationalism and isolationism. |
The 1920s were not just prosperity and jazz. They were a decade of consumer growth, racial conflict, modernism, restriction, and backlash.
Mass production and installment buying expanded consumer culture. Automobiles reshaped suburbs, roads, dating patterns, tourism, and oil demand. Radio and advertising helped create national culture.
Debates over flappers, Prohibition, religion, evolution, immigration, and race showed that the 1920s were deeply divided. The Scopes Trial symbolized conflict between modern science and religious traditionalism.
Black migration to northern and western cities expanded communities, labor markets, voting influence, and cultural movements such as the Harlem Renaissance, while also provoking racial violence and segregation.
The Great Depression exposed weaknesses in banking, credit, stock speculation, consumer demand, farming, wages, and international trade. Franklin Roosevelt's New Deal did not end the Depression by itself, but it permanently changed the relationship between citizens and the federal government. Federal policy now took greater responsibility for relief, public works, financial regulation, labor rights, and social welfare.
| New Deal Area | Major Examples | What It Changed |
|---|---|---|
| Relief | FERA, CCC, WPA | Provided jobs, aid, and public works for struggling Americans. |
| Recovery | AAA, NRA, public works spending | Attempted to stabilize agriculture, industry, wages, and demand. |
| Reform | FDIC, SEC, banking regulation | Changed financial rules to prevent future collapse. |
| Labor | Wagner Act and union protections | Strengthened collective bargaining and helped unions grow. |
| Social welfare | Social Security Act | Created federal old-age pensions and unemployment insurance. |
| Limits | Unequal access, segregation, excluded workers | Many Black workers, domestic workers, farmworkers, Mexican Americans, and women faced limits in benefits and opportunity. |
A strong New Deal answer should include both change and limits. The New Deal expanded federal responsibility for the economy, labor, banking, public works, and welfare. But unemployment remained high until wartime mobilization, many programs reinforced racial and gender inequality, and critics on both the left and right argued the New Deal either went too far or not far enough.
World War II transformed the United States. Federal spending ended the Depression, factories converted to military production, women entered industrial jobs, Black Americans pressed for a Double V campaign, Mexican American labor expanded through wartime needs, Japanese Americans faced incarceration, and the United States emerged with enormous global power after the war.
| World War II Topic | What Students Should Know | Exam Use |
|---|---|---|
| War Production Board | Coordinated industrial production for war needs. | Use for federal power and economic mobilization. |
| Rosie the Riveter | Symbolized women's industrial labor during wartime. | Use for gender roles and labor change. |
| Double V campaign | Black Americans demanded victory over fascism abroad and racism at home. | Use for civil rights pressure during World War II. |
| Executive Order 8802 | Banned discrimination in defense industries after pressure from A. Philip Randolph. | Use for wartime civil rights activism. |
| Japanese American incarceration | Japanese Americans were forcibly removed and imprisoned after Pearl Harbor. | Use for civil liberties and wartime fear. |
| Bracero Program | Mexican laborers were recruited for agricultural and railroad work. | Use for migration, labor, and wartime needs. |
| GI Bill | Provided benefits for veterans after the war. | Connects wartime service to postwar opportunity and inequality. |
Use this evidence bank for multiple-choice explanations, short-answer responses, DBQ context, and long essay support. The best Unit 7 evidence shows how reform, war, depression, and mobilization expanded federal power and changed American society.
| Evidence | What It Proves | Best Exam Use |
|---|---|---|
| Muckrakers | Journalists exposed corruption, unsafe conditions, and social problems. | Progressive reform and public pressure. |
| Pure Food and Drug Act | Federal government regulated consumer safety. | Progressive regulation. |
| Seventeenth Amendment | Created direct election of senators. | Political democracy and Progressive reform. |
| Spanish-American War | Expanded U.S. overseas power. | Imperialism and global power. |
| Roosevelt Corollary | Expanded U.S. intervention in Latin America. | Foreign policy and hemispheric power. |
| Espionage and Sedition Acts | Restricted dissent during World War I. | Civil liberties during wartime. |
| Harlem Renaissance | Black artists, writers, and musicians shaped modern culture and racial pride. | Migration, culture, and race in the 1920s. |
| Immigration Act of 1924 | Restricted immigration through national origins quotas. | Nativism and cultural backlash. |
| Social Security Act | Created federal old-age pensions and unemployment insurance. | New Deal and welfare state expansion. |
| Wagner Act | Protected labor organizing and collective bargaining. | New Deal labor reform. |
| Double V campaign | Linked World War II service to civil rights demands. | Home front and racial justice. |
| Executive Order 9066 | Authorized Japanese American removal and incarceration. | Civil liberties and wartime fear. |
| War Production Board | Coordinated wartime industry and economic mobilization. | Federal power during World War II. |
| GI Bill | Expanded postwar educational and housing benefits for veterans, though access was unequal. | World War II legacy and postwar society. |
Unit 7 is especially strong for reform, foreign policy, federal power, cultural conflict, economic crisis, migration, and civil liberties questions.
Progressivism responded to Gilded Age problems such as trusts, unsafe labor, political machines, urban poverty, railroad abuses, and unequal political power. Strong answers connect reform to earlier industrial change.
Progressive regulation, wartime mobilization, New Deal agencies, Social Security, labor protections, and World War II planning all expanded federal authority over the economy and society.
Progressives excluded many groups, World War I restricted dissent, the New Deal did not fully end inequality, and World War II expanded opportunity while violating Japanese American civil liberties.
Answer parts A, B, and C.
For part A, use trust regulation, food and drug regulation, labor laws, conservation, women's suffrage, or democratic reforms. For part B, use Social Security, banking regulation, work relief, labor protections, or direct federal aid. For part C, use women in industry, Black civil rights activism, Japanese American incarceration, migration, wartime production, or the Bracero Program.
Use the full unit review hub to connect Unit 7 to Gilded Age problems before 1890 and Cold War changes after 1945.
Practice questions help students apply Unit 7 concepts such as reform, imperialism, depression, New Deal, and World War II.
Unit 7 provides strong evidence for questions about federal power, reform, economic crisis, war, civil liberties, and migration.
If you can explain how the United States responded to industrial problems, overseas power, economic collapse, and world war, you can handle many of the strongest Unit 7 exam questions.