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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. The Christmas Truce | December 25, 1914 | HISTORY

    Nov 24, 2009 · During World War I, German, Russian, French and British troops temporarily cease fighting on Christmas day.

  6. 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 ...

  7. Ace of Aces: How the Red Baron Became WWI’s Most Legendary …

    Sep 16, 2016 · Manfred von Richthofen—better known as the “Red Baron”—was the top scoring flying ace of World War I, with 80 aerial victories between September 1916 and his death in April 1918.

  8. Austria-Hungary issues ultimatum to Serbia - HISTORY

    Oct 28, 2009 · Acting with the full support of its allies in Berlin, Austria-Hungary had determined in the aftermath of Franz Ferdinand’s assassination to pursue a hard-line policy towards Serbia. Their plan ...

  9. Woodrow Wilson’s 14 Points: How a Vision for World Peace Failed

    Nov 14, 2023 · President Wilson's blueprint for ending World War I and avoiding all future global disputes was ambitious—but ultimat...

  10. Treaties of Brest-Litovsk - Facts, World War I | HISTORY

    Nov 9, 2009 · The Treaties of Brest-Litovsk was a seires of treaties Russia signed with the Central Powers ending its participation...