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Option 3 : First World War
- Archduke Franz Ferdinand, nephew of Emperor Franz Josef was shot along with his wife on 28th June 1914 by a Serbian nationalist in Sarajevo, Bosnia.
- The killings sparked a chain of events that led to the outbreak of the first World War.
- The World War 1 lasted from 28 July 1914 to 11 November 1918.
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