Government or official record
Ludlow Tent Colony Site National Historic Landmark
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.
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Social movements · 20 April 1914Open article references →
The Ludlow Massacre
Ludlow Tent Colony National Historic Landmark · United States
Why editors use it hereDesignation record and documentation establishing the preserved location and national significance.
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Quick read
On 20 April 1914, gunfire erupted between Colorado National Guard forces, mine guards, and striking coal miners at the Ludlow tent colony.
Reviewed 26 July 2026 -
Trigger and conditions
On Orthodox Easter Monday, officers demanded a man they claimed was being held in the colony.
Reviewed 26 July 2026 -
Uncertainty
Death totals vary from about nineteen to twenty-five depending on whether earlier or later strike deaths are included.
Reviewed 26 July 2026 -
Why it matters
Ludlow exposes the blurred boundary between corporate force and public authority in a company-dominated region.
Reviewed 26 July 2026
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Quick read