page_title: History of the United States (1865–1918)
section_title: World War I
hierarchical_section_title: History of the United States (1865–1918) / World War I
context_page_description: The history of the United States from 1865 until 1918 covers the Reconstruction Era, the Gilded Age, and the Progressive Era, and includes the rise of industrialization and the resulting surge of immigration in the United States.
  This period of rapid economic growth and soaring prosperity in the North and the West saw the U.S. become the world's dominant economic, industrial, and agricultural power. The average annual income of non-farm workers grew by 75% from 1865 to 1900, and then grew another 33% by 1918.
  With a decisive victory in 1865 over Southern secessionists in the Civil War, the United States became a united and powerful nation with a strong national government. Reconstruction brought the end of legalized slavery plus citizenship for the former slaves, but their new-found political power was rolled back within a decade, and they became second-class citizens under a "Jim Crow" system of deeply pervasive segregation that would stand for the next 80–90 years. Politically, during the Third Party System and Fourth Party System the nation was mostly dominated by Republicans.
caption: Woodrow Wilson.
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