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  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 escalated into a war across Europe that lasted until …

  2. 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 cau...

  3. World War I Timeline: Battles & Major Events | HISTORY

    Apr 8, 2021 · This World War I timeline of battles outlines the most important engagements of the 1914-1918 war, from the first Bat...

  4. Why Did the US Enter World War I? | HISTORY

    Apr 6, 2017 · The United States entered World War I in 1917, following the sinking of the British ocean liner Lusitania and the sho...

  5. The United States officially enters World War I - HISTORY

    Feb 9, 2010 · When World War I erupted in 1914, President Woodrow Wilson pledged neutrality for the United States, a position that the vast majority of Americans favored. Britain, however, was one of …

  6. Life in the Trenches of World War I - HISTORY

    Apr 23, 2018 · Trenches—long, deep ditches dug as protective defenses—are most often associated with World War I, and the results of trench warfare in that conflict were hellish indeed.

  7. How Airplanes Were Used in World War I - HISTORY

    Feb 10, 2022 · Even though airplanes were a relatively new invention, the race for air superiority started during World War I.

  8. Treaty of Versailles: Definition, Terms, Dates & WWI | HISTORY

    Oct 29, 2009 · The Treaty of Versailles was signed in 1919 and set harsh terms for Germany’s surrender to Allied powers after World ...

  9. Kaiser Wilhelm II - WWI, Abdication & Death | HISTORY

    Apr 14, 2010 · Wilhelm II (1859-1941) was the last German kaiser (emperor) and king of Prussia from 1888 to 1918, and one of the mos...

  10. The Assassination of Archduke Franz Ferdinand | HISTORY

    Jun 26, 2014 · The start of World War I, the so-called "Great War" of 1914 to 1918, was triggered when a teenage Serbian revolutionary shot Archduke Franz Ferdinand, the presumptive heir to the Austro …