The assassination of Archduke Franz Ferdinand of Austria.
World War 1 was sparked by the assasination of Archduke Franz Ferdinand of Austria.
The assassination of Archduke Franz Ferdinand of Austria on June 28, 1914, by Gavrilo Princip sparked World War I. This event led to Austria-Hungary declaring war on Serbia, triggering a series of alliances that plunged Europe into war. The assassination was motivated by nationalist sentiments among Serbs seeking independence from Austro-Hungarian rule.
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