About 6,920,000 results
Open links in new tab
  1. 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 Austria. His murder catapulted into a war across Europe that …

  2. World War I - Wikipedia

    At the start of the war, German cruisers were scattered across the globe, some of which were subsequently used to attack Allied merchant shipping. These were systematically hunted down …

  3. World War I - Encyclopedia Britannica

    5 days ago · World War I began after the assassination of Austrian archduke Franz Ferdinand by South Slav nationalist Gavrilo Princip on June 28, 1914.

  4. The Causes of WWI - World History Encyclopedia

    May 15, 2025 · Which event started World War I? The event that started WWI was the assassination of Archduke Franz Ferdinand, heir to the Habsburg throne, by a Bosnian Serb …

  5. 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.

  6. The causes of the First World War - Imperial War Museums

    How did the First World War start? By the summer of 1914, Europe was in a crisis. Just a few weeks before, Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, had been …

  7. How the War Started - Canada and the First World War

    On 4 August 1914, Canada, as a member of the British Empire, was at war. Canada's contribution to the First World War led to growing autonomy and international recognition, but at great cost.

  8. The causes of World War I: Explained simply - History Skills

    In the two decades before WWI started in 1914, there were a number of smaller conflicts and crises that had already threatened to turn into global conflicts. While these didn't start the …

  9. Six Causes of World War I | Norwich University - Online

    The First World War began in the summer of 1914, shortly after the assassination of Austria’s Archduke, Franz Ferdinand, and lasted more than four years, ending in 1918.

  10. Causes of World War I - Wikipedia

    World War I began in the Balkans on July 28, 1914, and hostilities ended on November 11, 1918, leaving 17 million dead and 25 million wounded. Moreover, the Russian Civil War can in many …