Final answer:
The assassination of Franz Ferdinand sparked the beginning of the Great War.
Step-by-step explanation:
The event that sparked the beginning of the Great War was the assassination of Franz Ferdinand.
On June 28, 1914, Archduke Franz Ferdinand, the heir to the Austro-Hungarian Empire, was assassinated by a Serbian nationalist in Sarajevo, Bosnia. This event triggered a series of diplomatic conflicts and alliances that eventually led to the outbreak of World War I.
The assassination of Franz Ferdinand heightened existing tensions between Serbia and Austria-Hungary, as well as among other European powers. These tensions eventually escalated into a full-scale war that involved many nations and caused widespread devastation.
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