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  1. World War I - Wikipedia

    Major areas of conflict included Europe and the Middle East, as well as parts of Africa and the Asia-Pacific. The war saw important developments in weaponry including tanks, aircraft, …

  2. World War I - Encyclopedia Britannica

    Nov 17, 2025 · World War I, an international conflict that in 1914–18 embroiled most of the nations of Europe along with Russia, the United States, the Middle East, and other regions.

  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 Austria. His murder catapulted into a war across Europe that …

  4. World War I Timeline Experience “The Great War: A Visual History”

    Here's how you know. ABMC honors the services of overseas U.S. armed forces by maintaining and promoting America’s overseas commemorative cemeteries and memorials.

  5. The Causes of WWI - World History Encyclopedia

    May 15, 2025 · The origins of the First World War (1914 to 18) are many and varied, with some even dating back several decades, but a political assassination in the Balkans in the summer …

  6. World War One (WW1) | HistoryExtra

    World War One (WW1) was a major global conflict that lasted four years, from 1914 to 1918. It began on 28 July 1914, when Austria-Hungary declared war on Serbia one month to the day …

  7. WORLD WAR I OVERVIEW - HISTORY CRUNCH

    World War I occurred from 1914 until 1918 and was one of the most significant events of the 20th century. At the time, it was referred to as the ‘Great War’ or the ‘War to End All Wars’. Today, …

  8. World War I facts and information | National Geographic

    In just four years between 1914 and 1918, World War I changed the face of modern warfare, becoming one of the deadliest conflicts in world history. World War I had a variety of causes,...

  9. About WWI - National WWI Museum and Memorial

    World War I changed everything, including how humanity expressed itself through the culture and arts of the time. Learn why veterans of WWI, in a racially integrated movement, marched on …

  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 …