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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The blood-stained undershirt, worn by Archduke Franz Ferdinand of Austria during his assassination s pictured on display at the museum of military history in Vienna.
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Crowds on the streets in the aftermath of the Anti-Serb riots in Sarajevo on 29 June 1914
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The front page of "The Excelsior" newspaper, announcing the assassination of Austrian Archduke Franz-Ferdinand.
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The Sarajevo trial in progress. Princip is seated in the center of the first row, Oct 1914