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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 …

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

    Nov 17, 2025 · World War I (1914–18) was an international conflict that embroiled most of the nations of Europe along with Russia, the U.S., the Middle East, and other regions. It led to the …

  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. 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 …

  5. World War I - Topics | Library of Congress

    Exhibition Echoes of the Great War: American Experiences of WWI Explore how Americans experienced the upheaval of world war—at home and abroad.

  6. 1914-1918-Online. International Encyclopedia of the First ...

    Explore the comprehensive, peer-reviewed "1914-1918-online" encyclopedia. Access 1,600+ articles on WWI from global experts.

  7. WORLD WAR I OVERVIEW - HISTORY CRUNCH

    World War I began in June of 1914, and is considered to have five major causes that led to the outbreak of the war. These five causes include the four long-term causes (militarism, alliances, …

  8. World War I - U.S. Army Center of Military History

    Cambrai, 20 November - 4 December 1917. The year that America entered the war was marked by near disaster for the Allies on all the European fronts. A French offensive in April, with …

  9. How Americans celebrated Christmas dinner in 1918 during ...

    3 days ago · The National WWI Museum reveals how wartime rationing shaped 1918 Christmas dinners with wheat-saving dishes, sugar alternatives and other creative solutions.

  10. CAUSES OF WORLD WAR I World War I occurred between July 1914 and November 11, 1918. By the end of the war, over 17 million people would be killed including over 100,000 American …