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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 - Encyclopedia Britannica

    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

    6 days 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 …

  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. The United States and the First World War - World War I Memorial …

    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 …

  7. 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, …

  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. 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, …

  10. World War I United States Military Records, 1917 to 1918

    Ohio, WWI Index and Return Cards, 1916-1920 - How to Use this Collection Oregon, World War I,County Military Service Records,1919-1920 - How to Use this Collection Oregon,World War I, …