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Archduke Ferdinand of Austria-Hungria and his wife are assassinated by Serbians
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Austria-Hungary declares war on Serbia
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Russia Mobilizes
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Germany declares war on Russia
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Germany declares war on France
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Britian declares war on Germany
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austria-hungary declares war on Russia
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France and Britian declare war on Austria Hungary
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U.S declares war on Germany
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Armitce signed
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Treaty of Versailles