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  1. 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...

  2. 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...

  3. 8 Events that Led to World War I - HISTORY

    Apr 6, 2021 · Imperialism, nationalistic pride and mutual alliances all played a part in building tensions that would erupt into war.

  4. 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...

  5. Why World War I Ended With an Armistice Instead of a Surrender

    Oct 31, 2018 · On the 11th hour of the 11th day of the 11th month of 1918, fighting in World War I halted-but it would not be until ...

  6. 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 …

  7. Armistice Day: World War I ends | November 11, 1918 | HISTORY

    Mar 10, 2010 · At the 11th hour on the 11th day of the 11th month of 1918, World War I ends. At 5 a.m. that morning, Germany signed ...

  8. Why Were American Soldiers in WWI Called Doughboys? - HISTORY

    Mar 2, 2016 · It’s unknown exactly how U.S. service members in World War I (1914-18) came to be dubbed doughboys—the term most typically was used to refer to troops deployed to Europe as …

  9. 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.

  10. What was the Zimmermann Telegram? - HISTORY

    May 21, 2014 · Most historians agree that American involvement in World War I was inevitable by early 1917, but the march to war was...