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Franz Ferdinand assassinated
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Austria-Hungary declares war on Serbia
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Germany declares war on Russia
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Germany declares war on France
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Schlieffen Plan
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Austria-Hungary declares war on Russia and Serbia declares war on Germany
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Battle of Marne begins
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Battle of Ypres begins
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Dardanelles Campaign begins
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Second Battle of Ypres begins
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Lusitania is sunk by German U-boat
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Tsar Nicholas II takes full control over Russia's armies
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Battle of Verdun begins
Longest battle of World War I and was one of the bloodiest -
Battle of Somme begins
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Zimmerman telegram sent to Mexico from Germany
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United States declares war on Germany
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Russia gets out of World War I with armistice with Central Powers
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President Woodrow Wilson issues his Fourteen Points
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Second Battle of Marne begins
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Kaiser Wilhelm flees Germany
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Germany signs armistice on the 11th hour of the 11th day of the 11th month ending WWI
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Treaty of Versailles officially ending World War I
