On June 28, 1914, Bosnian Serb revolutionary Gavrilo Princip assassinated the heir to Austria-Hungary's throne in Sarajevo. The death of Archduke Franz Ferdinand set off the chain of events that led to the First World War. What exactly happened that day - here is a
The assassination of the Archduke Franz Ferdinand

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And it was then when the car stopped in front of Gavrilo Princip, one of the conspirators, who was on his way home thinking he had failed. Here - an archive photo of Gavrilo Princip.

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This picture alldgedly shows the arrest of Princip but according to other sources this is the arrest of Nedeljko Cabrinovic, one of the consirators.

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Weapons used by Bosnian Serb student Gavrilo Princip displayed at a military history museum in Vienna.

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The uniform for General of the cavalry, worn by Archduke Franz Ferdinand of Austria during his assassination is pictured here on display at the museum of military history (Heeresgeschichtliches Museum) in Vienna, June 2