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ERA 3: Revolution and the New Nation (1754–1820s), ERA 4: Expansion and Reform (1801-1861), ERA 5: Civil War and Reconstruction (1850-1877), ERA 6: The Development of the Industrial United States (1870-1900)

Nat Turner by T. Thomas Fortune

ERA 4: Expansion and Reform (1801-1861), ERA 6: The Development of the Industrial United States (1870-1900)

Brazil-U.S. Trade-Mark Agreement

ERA 6: The Development of the Industrial United States (1870-1900)

Representatives meeting in Paris to sign the Treaty

Treaty of Paris of 1898

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

Trademark Agreement Between the United States and Austra-Hungary

ERA 6: The Development of the Industrial United States (1870-1900)

Teller Amendment

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

American Progress by John Gast

A Gold Hunter's Experience, Chalkley J. Hambleton

ERA 4: Expansion and Reform (1801-1861), ERA 5: Civil War and Reconstruction (1850-1877), ERA 6: The Development of the Industrial United States (1870-1900)

Foraker Act of 1900

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

Alexis De Tocqueville, Democracy in America

Charles Guiteau Letter to William T. Sherman

ERA 6: The Development of the Industrial United States (1870-1900)

Collections

How The Frontier Shaped The American Character, by Ray Allen Billington

Scribner's Illustrated Magazine for Girls and Boys

The Magazine that Taught Faulkner, Fitzgerald, and Millay How to Write, by Paul Rosta

Multiple Eras, ERA 8: The Great Depression and World War II (1929–1945), ERA 7: The Emergence of Modern America (1890–1930), ERA 6: The Development of the Industrial United States (1870-1900), ERA 10: Contemporary United States (1968 to the present)

Historical Images

School Begins

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

The first sight of the new world - Columbus discovering America

ERA 1: Three Worlds Meet (Beginnings to 1620), ERA 6: The Development of the Industrial United States (1870-1900)

The Cuban Melodrama

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

Uncle Sam's New Class in the Art of Self-Government

ERA 6: The Development of the Industrial United States (1870-1900), ERA 7: The Emergence of Modern America (1890–1930)

Alexander Graham Bell with Helen Keller and Annie Sullivan at the meeting of the American Association to Promote the Teaching of Speech to the Deaf, July 1894, in Chautauqua, N.Y

ERA 6: The Development of the Industrial United States (1870-1900)

Historical photograph of the assassination of President Garfield

ERA 6: The Development of the Industrial United States (1870-1900)

Christopher Columbus: Discoverer of America 1492

ERA 1: Three Worlds Meet (Beginnings to 1620), ERA 6: The Development of the Industrial United States (1870-1900)

Map showing Indian reservations within the limits of the United States : 1883

ERA 6: The Development of the Industrial United States (1870-1900)