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Schlieffen plan is devised
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Triple Entente created
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Archduke Franz Ferdinand mudered
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Central Powers alliance established
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Australia enters the war
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Austria-Hungary send the July Ultimatum to Serbia
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World War One begins
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Germany enters the war
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Russia enter the war
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Germany declare war on Russia
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Britain declares war on Germany
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Battle of Cer begins
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First battle of Marne begins
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Battle of Gallipoli begins
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RMS Lusitania is sunk by Germany
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Battle of Gallipoli ends
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Batttle of the Somme begins
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Battle of the Somme ends
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USA enters the war
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World War One ends
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Armistice with Germany takes effect