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Gavrilo Princip envisioned the death of the Archduke as the key that would unlock the shackles binding his people to the Austro-Hungarian Empire.
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After Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia.
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The atrocites committed against the ARmenian people of the Ottoman Empire during W.W.I are called the Armenian Genocide.
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In the waters of the Celtic Sea, the 32,000-ton ship was hit by an exploding torpedo on its starboard side. The torpedo blast was followed by a larger explosion, probably of the ship's boilers. The Lusitania sank within 20 minutes.
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The Zimmermann Telegram was a 1917 diplomatic proposal from the German Empire to Mexico to make war against the United States. The proposal was declined by Mexico, but angered Americans and led in part to a U.S. declaration of war in April.
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President Wilson appeared before a joint session of Congress and asked for a declaration of war against Germany in order to "make the world safe for democracy."
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Shortage of supplies and food and the trouble of their own country which lead to the Russian Revolution in 1917 which lead to the cold war.
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Wilson's Fourteen Points became the basis for a peace programme and it was on the back of the Fourteen Points that Germany and her allies agreed to an armistice in November 1918.
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The armistice between the Allies and Germany was signed in a railway carriage in Compiègne Forest on 11 November 1918, and marked the end of fighting in the First World War on the Western Front.
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The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers
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The League of Nations came into being after the end of World War I.
