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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. 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...

  4. 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.

  5. The United States officially enters World War I - HISTORY

    Feb 9, 2010 · When World War I erupted in 1914, President Woodrow Wilson pledged neutrality for the United States, a position that the vast majority of Americans favored. Britain, however, was one of …

  6. 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...

  7. 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...

  8. 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 ...

  9. 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.

  10. 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.