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  1. World War I: Causes and Timeline | HISTORY

    World War I was fought from 1914 to 1918. Learn more about World War I combatants, battles and generals, and what cau...

  2. World War I: Summary, Causes & Facts | HISTORY

    Oct 29, 2009 · World War I started in 1914, after the assassination of Archduke Franz Ferdinand, and ended in 1918. During the confl...

  3. Why Did the US Enter World War I? | HISTORY

    Apr 6, 2017 · The United States entered World War I in 1917, following the sinking of the British ocean liner Lusitania and the sho...

  4. Watch The Great War Full Episodes, Video & More - HISTORY

    “The Great War” is a four-hour cinematic documentary covering U.S. involvement in World War I in the critical year of 1918. After three years of horrific battle in the trenches of France and ...

  5. World War I Timeline: Battles & Major Events | HISTORY

    Apr 8, 2021 · This World War I timeline of battles outlines the most important engagements of the 1914-1918 war, from the first Bat...

  6. How Imperialism Set the Stage for World War I | HISTORY

    Mar 7, 2022 · Many of the powers in World War I were competitive in overtaking territories in Europe and Africa.

  7. Germany’s World War I Debt Was So Large It Took 91 Years to Pay …

    Jun 27, 2019 · After the Treaty of Versailles called for punishing reparations, <br> economic collapse, the rise of Naziism, and another world war thwarted Germany's ability to pay.

  8. The WWI Origins of the Poppy as a Remembrance Symbol

    May 25, 2017 · The Remembrance Day symbolism of the poppy started with a poem written by a World War I brigade surgeon who was struck by the sight of the red flowers growing on a …

  9. WWI’s Christmas Truce: When Fighting Paused for the Holiday

    Oct 29, 2018 · Over Christmas 1914, singing and soccer broke out between British and German forces.

  10. How Airplanes Were Used in World War I - HISTORY

    Feb 10, 2022 · Even though airplanes were a relatively new invention, the race for air superiority started during World War I.