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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 …

  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. …

  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...