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Archduke Franz Ferdinand and his wife were killed.
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One month after the assassination, Austria-Hungary declares war on Serbia.
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Germany declares war on Russia.
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Germany declares war on France, and invades neutral Belgium.
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The first British troops land in France.
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Great Britain and France declare war on Austria-Hungary.
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Japan declares war on Germany.
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The royal navy suffered its first defeat of the war.
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Germany declares war around the British isles.
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Turkish government arrested and executed several hundred Armenian intellectuals.
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Allies sign treaty of London.
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Lusitania sinks, torpedoed without warning.
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British empire and France against the German Empire.
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Britannic sinks killing 30 people.
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Battle of Kut begins
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Zimmerman telegram confirmed.
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US enter world war 1
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The first American troops land in France.
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China declares war on Germany and Austria-Hungary
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The plot failed before they could blow up the English Parliament.
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Peace negotiations to end World War 1
