Exactly one month after the assassination of Archduke Franz Ferdinand, Austria-Hungary declared war on Serbia.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Exactly one month after the assassination of Archduke Franz Ferdinand, Austria-Hungary declared war on Serbia.
28th June 2015
11th November 2022
11th November 2022
9th November 2019