This collection brings together free online books and text searches focused on 20th century United States history. Whether you are delving into military strategy, political developments, social changes, or daily life in America, these resources offer rich, accessible insights for both curious readers and dedicated researchers.
The Topics section below helps readers find books and documents within the huge Internet Archive collection, which includes periodicals and other materials, from older historical works to recent publications. Each topic link generates an Internet Archive search focused on that subject. Browsing the topics and selecting those of interest is usually easier and more effective than searching Internet Archive directly.
U.S. History Book Pages on Century Past
Topics: Free Books on United States in the 20th & 21st Centuries
Explore our curated selection of free online books and research tools centered on U.S. history topics across the 20th and 21st centuries. Each link connects you to books and primary documents focused on a specific subject, making your research seamless and organized.
Search options allow you to search within a single book, across all books in a section, or through the entire collection. As you explore these U.S. history topics, you can also uncover related material in broader subjects, including military history, political science, literature, foreign language studies, and social sciences.
United States History 20th Century Books
- 20th Century US History
- Afghan War 2001-
- Civil Rights Movements in 20th Century US History
- Cold War (1945-1989)
- Civilization 20th Century
- Civilization – 1970-
- Civilization – 21st Century
- Description and travel 20th Century
- Economic conditions 20th Century
- Economic Conditions – 1933-1945
- Economic Conditions – 2001-2009
- Economic policy 20th Century
- Foreign Relations 20th Century
- Foreign Relations 1933-1945
- Foreign Relations 1945-1989
- Foreign Relations 1989-
- Foreign Relations 2001-
- Foreign Relations – China
- Foreign Relations – Europe
- Foreign Relations – Middle East
- Foreign Relations – Soviet Union
- Intellectual Life – 20th Century US
- Iraq War (2003-2011)
- Korean War (1950-1953)
- New Deal 1933-1939
- Persian Gulf War 1991
- Politics and government 20th Century
- Politics and Government – 1898-1919
- Politics and Government 1933-1945
- Politics and Government 1945-1989
- Politics and Government – 1945-1989 – Anecdotes
- Politics and Government 1989-
- Politics and Government – 1989- – Anecdotes
- Politics and Government 1993-2001
- Politics and Government 2001-
- Politics and Government 2009-2017
- Popular Culture in US 20th Century History
- Religion 1901-1945
- Religion 1945-
- Social conditions 1918-1932
- Social Conditions 1933-1945
- Social conditions 1945-
- Social Conditions 1960-1980
- Social Conditions 1980-
- Social Conditions – 21st Century
- Social life and customs 20th Century
- Social Life and Customs – 20th century – Pictorial Works
- Social Life and Customs – 1945-1970
- Social Life and Customs 1971-
- Social Movements – 20th Century
- Social Policy – 1993-
- US History 1898-1919
- US History 1919-1933
- US History 1933-1945
- US History 1945-1953
- US History 1953-1961
- US History 1961-1974
- US History 1974-1989
- US History 1989-
- US History 20th Century
- Vietnam War (1961-1975)
- War on Terrorism (2001-2009)
- World War I (1914-1918)
- World War II (1939-1945)
- World War II American Personal Narratives
- World War II Diplomatic History
Specific Topics on the United States in the 20th & 21st Centuries
- Affirmative Action
- Africa
- African Americans – Civil Rights – History – 20th century
- Agriculture
- AIDS
- American Empire, 1945-2000
- American Indian Movement (AIM)
- Americanization
- Anti-Defamation League
- Art
- Atlantic Charter (1941)
- Australia
- Axis Powers
- Baby Boom Generation
- Bay of Pigs Invasion
- Beatniks
- Berlin Airlift
- Berlin Wall
- Bibliography
- Big Stick Diplomacy
- Biography
- Black Panthers
- Black Tuesday (1929)
- Bonus Army (1932)
- Camp David Accords
- Canada
- Caribbean
- Central America
- Central Intelligence Agency
- China
- Christian Fundamentalism
- Christianity and Politics – 20th century
- Church history – 20th century
- Civil Rights Act of 1964
- Civil rights movements
- Civilian Conservation Corps (CCC)
- Commerce
- Conscientious Objector
- Conspiracies – History – 20th Century
- Containment policy
- Counterculture
- Cuba
- Cuban Missile Crisis (1962)
- Cultural Influences
- Culture
- D-Day (1944)
- Depression – 1929
- Description and Travel
- Dust Bowl
- Economic Development
- Education
- Emigration and Immigration – 20th Century
- Environmental Protection Agency (EPA)
- Equal Rights Amendment
- Ethnology
- European Union
- Evangelicalism – 20th century
- Feminism – 20th century
- Financial Crises – 21st century
- Folk Music
- Folklore
- Fourteen Points
- Gays – Social Condition
- Geography
- Great Depression
- Great Migration
- Guidebooks
- Harlem Renaissance
- Hawaii – Annexation to the United States
- Historiography
- Holocaust
- Hooverville
- House Un-American Activities Committee (HUAC)
- Industries
- Intellectual Life – 20th Century
- Intelligence Service
- International Relations
- International Trade
- Interstate Highway Act (1956)
- Iran-Contra Affair
- Israel
- Japan
- Japanese Americans
- Jazz
- Jim Crow laws
- League of Nations
- Literature
- Lost Generation
- Lusitania
- Manhattan Project
- Manners and Customs
- Marshall Plan
- Media
- Mexico
- Middle East
- Military Forces
- Motion Picture Industry
- Motion Pictures – History
- Music
- NATO
- Niagara Movement (1905)
- Nineteenth Amendment
- North American Free Trade Agreement (NAFTA) (1992)
- Nuclear Weapons
- Nuremberg Trials
- Okies
- Open Door Policy
- Panama Canal
- Pearl Harbor
- Political campaigns – 21st Century
- Political Science
- Politics and Government
- Popular Culture – 20th century
- Progressivism
- Prohibition
- Race Relations – 20th century
- Rock Musicians
- Rural
- Russia
- Scopes Trial (1925)
- Security
- Social History
- Social Security Act (1935)
- South America
- South Korea
- Soviet Union
- Teenagers – Social Conditions
- Tourism
- Travel
- Treaties
- Urbanization
- Warfare
- Warsaw Pact
- Watergate Affair
- Women
- Working Class – 20th Century
- World Politics – 21st Century
- Yalta Conference
- Zimmerman Note
Related Pages on Century Past – More US History Resources
See our comprehensive Century Past directories for hundreds of dedicated pages featuring Books; Magazines; Articles, Vintage Maps, & Archival Photos; and Newspapers. You’ll find these same exact directories listed on our top main navigation Menu. Here are some highly recommended related pages: