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  1. World War I - Wikipedia

    World War I, [b] or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a global conflict …

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

    Jul 21, 2026 · World War I (1914–18) was an international conflict that embroiled most of the nations of Europe along with Russia, …

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

    Oct 29, 2009 · World War I, also known as the Great War, started in 1914 after the assassination of Archduke Franz Ferdinand of …

  4. Causes of World War I - Wikipedia

    Identifying the causes of World War I remains a debated issue. World War I began in the Balkans on 28 July 1914, and hostilities …

  5. 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 caused World …

  6. World War I Facts | Britannica

    Jul 14, 2026 · World War I (1914–18) was an international conflict that embroiled most of the nations of Europe along with Russia, …

  7. World War One: The global conflict that defined a century - BBC

    World War One began almost by accident and ended just as strangely. It was the first truly global conflict and saw death on an …

  8. World War I: Visual Study Guide (1914–1918) | IASNOVA

    Apr 10, 2026 · World War I Visual Study Guide covering causes, timeline, major battles, trench warfare, Treaty of Versailles, impact …

  9. How and why did World War One start? - BBC Bitesize

    Discover how country alliances led to World War One and why the great war started in this BBC Bitesize history KS2 guide.

  10. 1914-1918-Online. International Encyclopedia of the First World War (WW1)

    A Global War – A Global Project 1914-1918-online. International Encyclopedia of the First World War is the largest digital English …