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  1. World War I - Wikipedia

    The Bolsheviks signed an armistice followed by a separate peace shortly after their armed seizure of power. ^ Often abbreviated as WWI or WW1 ^ Only the Triple Alliance was a formal "alliance"; the …

  2. World War I | Causes, Years, Combatants, Casualties, Maps ...

    Nov 17, 2025 · 1914–1918 Quick Summary Ask the Chatbot Also known as: First World War, Great War, WWI

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

    Oct 29, 2009 · French soldiers in Verdun endure the horrors of trench warfare, a strategy that led to rampant disease, shell shock and mass casualties during WWI.

  4. 5 Top Aces of World War I - World History Encyclopedia

    1 day ago · WWI saw the birth of an entirely new form of combat: lone men engaging the enemy in aerial dogfights. The victors became heroes back home, but this was as deadly an occupation as it was an …

  5. Key Dates - National WWI Museum and Memorial

    Jul 18, 2019 · When did it end? This page provides a brief summary of the important events and battles of the war, from the start of the conflict through the peace treaties. To learn more, please explore our …

  6. World War I: Causes and Timeline | HISTORY

    WWI Inventions, From Pilates to Zippers, That We Still Use Today These World War I inventions made life easier during—and after—the war.

  7. World War I | Britannica

    World War I: To its contemporaries, it was known simply as "the World War" or "the Great War," because it was nearly impossible to imagine a conflict that would surpass the one that shattered …

  8. Causes of World War I - Wikipedia

    The identification of the causes of World War I remains a debated issue. World War I began in the Balkans on July 28, 1914, and hostilities ended on November 11, 1918, leaving 17 million dead and …

  9. The United States and the First World War - World War I ...

    Library of Congress image In the summer of 1914, the assassination of Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, ignited a continental war between the Central Powers of Germany, …

  10. World War I Timeline From 1914 to 1919 - ThoughtCo

    May 13, 2025 · World War I was sparked by the assassination of Archduke Franz Ferdinand in 1914. Find out what happened after that event in this WWI timeline.