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Government or official record

American Labor History Theme Study

U.S. National Park Service

Where this source supports the record

Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.

  1. Social movements · 16 July–August 1877

    The Great Railroad Strike of 1877

    Baltimore & Ohio Railroad Martinsburg shops · United States

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    Why editors use it here

    Federal scholarly context for the strike within industrial labor, state force, and later organizing.

    1. Quick read

      In July 1877, Baltimore & Ohio workers at Martinsburg stopped trains after another ten-percent wage cut.

      Reviewed 26 July 2026
    2. Trigger and conditions

      Major railroads announced new wage reductions in summer 1877.

      Reviewed 26 July 2026
    3. Uncertainty

      National casualty and participation totals vary because the movement lacked central records and mixed strikers, supporters, bystanders, and property attacks.

      Reviewed 26 July 2026
    4. Why it matters

      The strike was neither one centrally planned insurrection nor a set of unrelated riots.

      Reviewed 26 July 2026
  2. Social movements · 1 July–21 November 1892

    The Homestead Steel Strike

    Former Homestead Steel Works riverfront · United States

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    Why editors use it here

    Federal scholarly study of union strength, Carnegie and Frick strategy, battle, militia intervention, and long-term deunionization.

    1. Quick read

      In 1892, Carnegie Steel locked out union workers at its Homestead mill near Pittsburgh.

      Reviewed 26 July 2026
    2. Trigger and conditions

      Workers took control of approaches to the mill after the lockout.

      Reviewed 26 July 2026
    3. Uncertainty

      Contemporary accounts were highly partisan and disagree about the first shot and some casualty details.

      Reviewed 26 July 2026
    4. Why it matters

      The violence was not simply a clash between equal private armies.

      Reviewed 26 July 2026