In AP® US History, period 7 spans from 1898 to 1945 CE. The following guide will be updated periodically with hyperlinks to excellent resources. As you are reviewing for this era, focus on the key concepts and use the essential questions to guide you.
STUDY TIP: You will never be asked specifically to identify a date. However, knowing the order of events will help immensely with cause and effect. For this reason, we have identified the most important dates to know.
1898 - Annexation of Hawaii
1898 - Spanish American War
1903 - Wright Brothers
1917 - US enters WWI
1920 - Women’s Suffrage
1920s - Red Scare
1920s - Prohibition
1929 - Stock Market Crash
1932 - Bonus Army
1935 - Social Security Act
1939 - WWII starts in Europe
1941 - Attack on Pearl Harbor
1944 - D-Day
1945 - Atomic Bomb dropped on Hiroshima
STUDY TIP: Use the following essential questions to guide your review of this entire unit. Keep in mind, these are not meant to be practice essay questions. Each question was written to help you summarize the key concept.
What were the goals and achievements of the Progressive Era?
How did the growth of mass culture affect US society?
In what ways did the global conflicts of the early 20th century affect the United States?
STUDY TIP: Content from the this era has appeared on the essays twenty times since 2000. Take a look at these questions before you review the key concepts & vocabulary below to get a sense of how you will be assessed. Then, come back to these later and practice writing as many as you can!
*The APUSH exam was significantly revised in 2015, so any questions from before then are not representative of the current exam format. You can still use prior questions to practice, however DBQs will have more than 7 documents, the LEQ prompts are worded differently, and the rubrics are completely different. Use questions from 2002-2014 with caution. Essays from 1973-1999 available here. *The following outline was adapted from the AP® United States History Course Description as published by College Board in 2019 found here. This outline reflects the most recent revisions to the course.
The US continued to transition from rural to urban economies led by large corporations.
- New technology increased production of consumer goods.
- Most Americans lived in cities by 1920, which had more opportunities.
- The Great Depression forced calls for more financial regulation.
Progressive activists called for reforms to combat political corruption and instability.
- ☮️ Study Guide: Progressivism
- Journalists investigated inequality and injustice (muckrakers).
- Activists fought for federal legislation to expand rights (prohibition, suffrage).
- Environmentalists sought to protect natural resources.
- Progressive activists disagreed on racial justice and immigration restrictions.
Legislation was enacted in the 1930s to recover and reform the economy while providing relief for mass unemployment and financial crises.
- Roosevelt enacted New Deal policies in an attempt to end the Great Depression.
- Progressive activists pushed FDR to do more while conservatives pushed for less.
- The New Deal did not end the Great Depression, but it left a legacy of reforms and align many groups with the Democratic Party.
Popular culture influenced and connected more people.
- New mass media (radio, cinema) spread national culture and connected regions.
- Migrations sparked new forms of art and literature
- Fear of communism during World War I led to restrictions on speech.
- 🔴 Study Guide: Cultural and Political Controversy
- Controversies over gender, science, religion, race, and immigration.
Migration patterns were influenced by global conflict.
- After WWI, immigration quotas were passed that favored white migrants.
- Americans migrated to cities for economic opportunities during war.
- Black men and women migrated north and west to escape violence in the south.
- Migration to the US from Mexico increased.
The US participated in imperialism ventures around the world, which sparked debates.
- The argument for imperialism cited opportunities, racist ideologies, and competition.
- The argument against imperialism cited self-determination and isolationism.
- Study Guide: Imperilaism Debates
- Victory in the Spanish-American war gave the US lands in the Caribbean and Pacific.
- 🔥 Study Guide: The Spanish American War
World War I intensified debates about the role of the US in the world.
- The US eventually joined WWI, reversing neutrality policy.
- 💣Study Guide: Buildup to War and the AEF
- 🏭Study Guide: War on the Home Front
- US forces in WWI tipped the balance in the favor of the Allies.
- Neither the Treaty of Versailles or the League of Nations were ratified by the senate.
- After WWI, the US pursued foreign policy using investment, treaties, and intervention.
- During the 1930s, most Americans opposed actions against Nazi Germany or Imperial Japan, until after the attack on Pearl Harbor pulled the US into WWII.
- 🙅 Study Guide: Interwar Foreign Policy
WWII transformed American society and resulted in the US as a global superpower.
- Americans saw the war as defending freedom.
- Wartime mobilization helped end the Great Depression.
- 🎖️ Study Guide: Mobilization
- Women and minorities had more opportunities for mobility and work during the war.
- The Allies won WWII because of technology, cooperation, and military strategy.
- 🔫 Study Guide: Military Action in WWII
- With Asia and Europe ravaged from the war, the US emerged as the most powerful.
STUDY TIP: These are the concepts and vocabulary from period 7 that most commonly appear on the exam. Create a quizlet deck to make sure you are familiar with these terms!
Deep breath. This one of the most vocab heavy units.
Birth of a Nation
Civilian Conservation Corps
Clayton Antitrust Act
Committee on Public Information
Executive Order 9066
Father Charles Coughlin
Franklin D. Roosevelt
Good Neighbor Policy
Henry Cabot Lodge
Huey P. Long
Immigration Quotas 1921 & 1924
Korematsu v. US
League of Nations
Meat Inspection Act
Muller v. Oregon
Open Door Policy
Pure Food & Drug Act
Rosie the Riveter
Sacco & Vanzetti
Schenck v. United States
Social Security Act
Teapot Dome Scandal
Tennessee Valley Authority
Treaty of Versailles
War Production Board
War Refugee Board
Wilson's 14 Points
Women's Christian Temperance Union