Using the assassination of the Austrian archduke Francis Ferdinand as a pretext to present Serbia with an unacceptable ultimatum, Austria-Hungary declared war on the Slavic country on this day in 1914, sparking World War I. Britannica
Using the assassination of the Austrian archduke Francis Ferdinand as a pretext to present Serbia with an unacceptable ultimatum, Austria-Hungary declared war on the Slavic country on this day in 1914, sparking World War I. Britannica
Using the assassination of the Austrian archduke Francis Ferdinand as a pretext to present Serbia with an unacceptable ultimatum, Austria-Hungary declared war on the Slavic country on this day in 1914, sparking World War I. Britannica
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