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| post–Civil War United States | |
|---|---|
| Conventional long name | United States after the American Civil War |
| Common name | United States |
| Era | Reconstruction and Gilded Age |
| Government type | Federal republic |
| Event start | Surrender at Appomattox |
| Date start | April 9, 1865 |
| Event end | Spanish–American War |
| Date end | April 25, 1898 |
post–Civil War United States
The period following the American Civil War encompassed political, social, and economic transformation across the United States marked by efforts at reunification, rapid industrial growth, territorial expansion, and cultural realignment. Reconstruction policies and amendments shaped relations among former Confederates, freedpeople, and federal authorities while the rise of industrialists, labor movements, and imperial ventures reconfigured American power and society. Conflicts over civil rights, economic inequality, and international posture produced enduring institutions and debates that influenced the Progressive Era and twentieth-century developments.
Reconstruction witnessed contested policies between Abraham Lincoln, Andrew Johnson, and the Radical Republicans in the United States Congress over reintegration of the Confederate States of America, administration of the Thirteenth Amendment, Fourteenth Amendment, and Fifteenth Amendment, and protection for freedpeople, while federal interventions included the Freedmen's Bureau and enforcement via the Enforcement Acts against groups like the Ku Klux Klan. Significant legal developments occurred in the United States Supreme Court through cases such as United States v. Cruikshank and Ex parte Milligan, and political crises such as the Impeachment of Andrew Johnson and the disputed 1876 United States presidential election involving Rutherford B. Hayes and Samuel J. Tilden culminated in the Compromise of 1877. Reconstruction-era state constitutions in places like Louisiana, South Carolina, and Mississippi advanced public education initiatives and civic participation even as the rollback of rights led to the rise of Jim Crow laws and decisions like Plessy v. Ferguson that shaped racial segregation.
The Gilded Age featured consolidation by industrialists such as Andrew Carnegie, John D. Rockefeller, J. P. Morgan, Cornelius Vanderbilt, and James J. Hill alongside the expansion of corporations like Standard Oil and United States Steel and financial institutions exemplified by J.P. Morgan & Co. and the New York Stock Exchange. Rail networks including the Transcontinental Railroad and companies like the Union Pacific Railroad and Central Pacific Railroad facilitated market integration and spurred conflicts such as the Great Railroad Strike of 1877 and the Pullman Strike led by figures like Eugene V. Debs and organizations including the American Federation of Labor and the Knights of Labor. Labor confrontations, technological change exemplified by the Bessemer process and inventions by Thomas Edison and Alexander Graham Bell, and urbanization shaped social responses from reformers like Jacob Riis and institutions such as the Hull House founded by Jane Addams.
Westward expansion involved treaties and conflicts between the federal state and Indigenous nations in episodes like the Indian Wars, including battles such as the Battle of Little Bighorn, with leaders like Sitting Bull and Crazy Horse resisting policies executed through the Bureau of Indian Affairs and military commanders like George Armstrong Custer. Landmark statutes and jurisprudence including the Dawes Act and decisions such as United States v. Kagama reshaped land tenure, allotment, and citizenship, while events like the Sand Creek Massacre and the Wounded Knee Massacre illustrated violent dispossession. Settlement initiatives, the Homestead Act, and migration via the Oregon Trail and the California Gold Rush accelerated territorial incorporation including Alaska Purchase negotiations and disputes with entities such as the Hudson's Bay Company.
Cultural shifts manifested in literature by authors like Mark Twain, Henry James, and Walt Whitman, in art movements centered on institutions such as the Metropolitan Museum of Art and the Hudson River School, and in religious and reform movements led by figures like Susan B. Anthony, Elizabeth Cady Stanton, and Frederick Douglass. Urban social problems spurred public-health reforms influenced by physicians such as William H. Welch and settlement work by Lillian Wald, while popular culture expanded through newspapers like the New York World and entertainment venues such as Coney Island and the Chautauqua movement. Intellectual currents including Social Darwinism and political economy debates involved thinkers like William Graham Sumner and policy responses from legislators like Senator Henry Cabot Lodge.
Political life featured machine politics epitomized by Tammany Hall and figures like Boss Tweed, federal scandals such as the Credit Mobilier scandal and the Whiskey Ring, and reform crusades leading to civil service reform via the Pendleton Civil Service Reform Act championed by Chester A. Arthur. Party realignment produced competitive presidential contests involving Rutherford B. Hayes, James A. Garfield, Grover Cleveland, and William McKinley amid tariff debates, silver and gold controversies culminating in the 1896 United States presidential election with candidates like William Jennings Bryan. Progressive municipal reforms emerged in cities such as Chicago, New York City, and Cleveland, while legislative innovations included interstate regulation through the Interstate Commerce Act and antitrust enforcement under the Sherman Antitrust Act.
Industrial consolidation fostered trusts and combinations including Standard Oil Trust, Northern Securities Company, and conglomerates overseen by financiers like J. P. Morgan; antitrust actions such as United States v. E. C. Knight Co. and Northern Securities Co. v. United States tested federal authority. Agricultural distress drove movements like the Grange movement and the Populist Party with leaders such as Charles W. Macune and Mary Elizabeth Lease, while monetary debates over bimetallism and the Gold Standard influenced policies at institutions like the United States Treasury and events such as the Panic of 1893. Banking and industrial crises prompted regulatory responses exemplified by hearings before committees chaired by figures like William P. Frye and mobilized intellectual critique from economists like Thorstein Veblen.
Late-century foreign policy shifted toward intervention and imperial competition, illustrated by the Spanish–American War, the Annexation of Hawaii, and the Open Door Policy toward China advocated by Secretary of State John Hay; naval expansion promoted by Alfred Thayer Mahan and institutions like the United States Navy supported new overseas bases in places such as Guam and Puerto Rico. Debates over expansion involved anti-imperialists including Mark Twain and organizations like the Anti-Imperialist League versus proponents such as Theodore Roosevelt and Henry Cabot Lodge, and culminated in agreements like the Treaty of Paris (1898) and the Platt Amendment shaping relations with Cuba and the Philippines.