Beginnings To 1620
Era 1: Three Worlds Meet

• The New World. From the University of Georgia, Hargrett Library Rare Map Collection
• Maps and Images. From Virtual Jamestown.

1585-1763
Era 2: Colonization and Settlement

• Colonial America. From the University of Georgia, Hargrett Library Rare Map Collection
• Document Library -- Colonial Era. From Teaching American History

1754-1820
Era 3: Revolution and the New Nation

• Liberty! The American Revolution. From PBS
• Spy Letters of the American Revolution. From the Collections of the Clements Library
• Document Library -- American Revolution. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• Teaching with Documents. Images of the American Revolution. From the National Archives
• Religion and the Founding of the American Republic. From the Library of Congress.
• Africans in America: Revolution. From PBS.
• The Dolley Madison Project
• The Papers of George Washington. From the University of Virginia
• The Thomas Jefferson Papers at the Library of Congress
• The James Madison Papers, 1723-1836 at the Library of Congress
• George Washington Papers at the Library of Congress, 1741-1799
• Documents from the Continental Congress and the Constitutional Convention, 1774-1789. From the Library of Congress, American Memory

1801-1861
Era 4: Expansion and Reform

• Union and Expansion. From the University of Georgia, Hargrett Library Rare Map Collection
• Document Library -- Expansion Era. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• The Dolley Madison Project
• The James Madison Papers, 1723-1836 at the Library of Congress
• The Thomas Jefferson Papers at the Library of Congress
• The Frederick Douglass Papers at the Library of Congress

1850-1877
Era 5: Civil War and Reconstruction

• Abraham Lincoln Historical Digitization Project.
• Document Library -- Civil War Era. From Teaching American History
• American Civil War. From the University of Georgia, Hargrett Library Rare Map Collection
• A House Divided: America in the Age of Lincoln. From Digital History
• America's Reconstruction: People and Politics after the Civil War. From Digital History
• Freedmans' Bureau Online
• Finding Precedent: The Impeachment of Andrew Johnson. From Harp Week
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• Beyond Face Value: Depictions of Slavery in Confederate Currency. From the U.S. Civil War Center.
• Blue and Gray for Boys and Girls. From the U.S. Civil War Center.
• Russell County, Va., Civil War Website
• Mr. Lincoln's Virtual Library. From the Library of Congress, American Memory
• Abraham Lincoln Papers at the Library of Congress
• "We'll Sing to Abe Our Song!": Sheet Music about Lincoln, Emancipation, and the Civil War from the Alfred Whital Stern Collection of Lincolniana. From the Library of Congress, American Memory
• Civil War Treasures from the New-York Historical Society. From the Library of Congress, American Memory
• Washington during the Civil War: the Diary of Horatio Nelson Taft, 1861-1865. From the Library of Congress, American Memory
• Selected Civil War Photographs. From the Library of Congress, American Memory
• The Frederick Douglass Papers at the Library of Congress

1870-1900
Era 6: The Development of the Industrial United States

• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• Inside an American Factory: Films of the Westinghouse Works, 1904. From the Library of Congress, American Memory
• America at Work, America at Leisure: Motion Pictures from 1894-1915. From the Library of Congress, American Memory

1890-1930
Era 7: The Emergence of Modern America

• Document Library -- Progressive Era. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• American Leaders Speak: Recordings from World War I and the 1920 Election. From the Library of Congress, American Memory
• Inside an American Factory: Films of the Westinghouse Works, 1904. From the Library of Congress, American Memory
• America at Work, America at Leisure: Motion Pictures from 1894-1915. From the Library of Congress, American Memory

1929-1945
Era 8: The Great Depression and World War II

• Document Library -- American Between World Wars and World War II. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• "Suffering Under a Great Injustice": Ansel Adams's Photographs of Japanese-American Internment at Manzanar. From the Library of Congress American Memory
• Photo Archives Online Catalog. From the U.S. Holocaust Museum
• A Summons to Comradeship" World War I and II Posters and Postcards. From the University of Minnesota.
• Posters of the Second World War from the Kittleson Collection of the Minnesota Public Library

1945-early 1970s
Era 9: Postwar United States

• Document Library -- Civil Rights. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History

1968-Present
Era 10: Contemporary United States

• Document Library -- Modern Era. From Teaching American History
• Price of Freedom: Americans at War. From the Smithsonian Institute, National Museum of American History
• September 11, 2001, Documentary Project. From the Library of Congress, American Memory
• FIRE AND FAITH: The Catonsville Nine File. From the Enoch Pratt Free Library