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Ferdinand and wife, Sophie were killed by Serb nationalist, Gavrilo Princip while on a trip to Sarajevo. Earlier that day, Ferdinand had already survived an assassination attempt.
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Exactly one month after Archduke Franz Ferdinand and his wife Sophie were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia, beginning the First World War.
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Serbia joins the war after Austria-Hungary declares war on them
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On August 4th 1914, Great Britain declared war on Germany. Britain had given Germany an ultimatum to get out of Belgium by midnight of August 3rd.
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the Belgian government had announced that if war came it would remain it's neutrality. On August 1, the German government sent an ultimatum to Belgium, demanding passage through the country. The Belgian Government refused the demands and the British Government guaranteed military support to Belgium. The German government declared war on Belgium on August 4th
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Germany and France declare war on each other
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The Battle of Tannenberg was a battle between Russia and Germany in the first month of World War I
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The battle of Tannenberg ended in a German victory with a capture of 125,000 Russians.
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The ottoman navy destroyed Russian ports and the Ottoman Empire entered the world war
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Italy declares war on Austria-Hungary on the sides of the allies, Britain, France, and Russia.
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Bulgaria issues a statement announcing it's entrance to the First World War
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Germany declares war on Portugal
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Romania declares war on Austria-Hungary formally entering the war
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Greece declares war on central powers
