A
ustria-Hungary issues an ultimatum to Serbia allowing the Austrians to find out who killed Archduke Franz Ferdinand.
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Today In History- July 23
Owner:This_Day_In_History
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Created:Feb 14, 2008
Modified: Jul 19, 2011
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Fold3, Today In History- July 23 (https://www.fold3.com/memorial/2486/today-in-history-july-23/facts : accessed May 5, 2024), database and images, https://www.fold3.com/memorial/2486/today-in-history-july-23/facts