1862
Congress passes Homestead Act

1864
Sand Creek Massacre

1866
National Labor Union forms

1867
National Grange forms

1869
Transcontinental Railroad is completed

Knights of Labor forms

1870
Standard Oil Company forms

1875
Sioux Wars occur in Dakota Territory

1876
Alexander Graham Bell invents telephone

Battle of Little Bighorn

1877
Rutherford B. Hayes is declared the winner 1876 presidential election

Railroad workers strike across United States

Nez Percé War

1879
Thomas Edison invents lightbulb

1880
James A. Garfield is elected president

1881
Garfield is assassinated; Chester A. Arthur becomes president

Booker T. Washington becomes president of Tuskegee Institute

1882
Congress passes Chinese Exclusion Act

1883
Congress passes Pendleton Act

1884
Grover Cleveland is elected president

1885
Farmers’ Alliance forms

1886
Supreme Court issues verdict in Wabash case

Haymarket Square bombing

American Federation of Labor forms

1887
Congress passes Interstate Commerce Act

Congress passes Dawes Severalty Act

1888
Benjamin Harrison is elected president

1889
Jane Addams founds Hull House in Chicago

1890
Congress passes Sherman Silver Purchase Act, Pension Act, and McKinley Tariff

Congress passes Sherman Anti-Trust Act

U.S. Census Bureau declares frontier closed

Battle of Wounded Knee

1891
Populist Party forms

1892
Miners strike in Coeur d’Alene, Idaho

Homestead Strike occurs

Grover Cleveland is elected president again

1893
Depression of 1893

Lillian Wald founds Henry Street Settlement in New York

Frederick Jackson Turner publishes The Significance of the Frontier in American History

1894
“Coxey’s Army” marches on Washington, D.C.

Congress passes the Wilson-Gorman Tariff

Eugene V. Debs organizes Pullman Strike in Chicago

1895
J. P. Morgan bails out U.S. government

1896
Supreme Court issues Plessy v. Ferguson ruling

William Jennings Bryan delivers “Cross of Gold” speech

William McKinley is elected president

1897
Congress passes Dingley Tariff

1898
Anti-Imperialist League forms

USS Maine explodes in Havana Harbor

Spanish-American War begins

United States annexes Hawaii

Congress passes Teller Amendment

Admiral Dewey seizes Philippines at Manila Bay

1899
Aguinaldo leads Filipino Insurrection

John Hay writes First Open Door Note

1900
Congress passes Gold Standard Act

Congress passes Foraker Act

U.S. sends troops to China to suppress Boxer Rebellion

Hay drafts Second Open Door Note

McKinley is reelected

1901
McKinley is assassinated; Theodore Roosevelt becomes president

Hay-Pauncefote Treaty

U.S. Steel Corporation forms

Insular Cases decided

Congress passes Platt Amendment