28th July 1914 The Assassination of Franz Ferdinand by Gavrilo Princip. It was one of the key events that led to World War I.

SONGS ABOUT THE ASSASSINATION OF FRANZ FERDINAND
SARAJEVO  -  Sabaton     https://www.youtube.com/watch?v=Xszx_9UPwV8
JULY  -   War Wolfe X     https://www.youtube.com/watch?v=OFhx4EX53GA
BANG BANG, ALL FOR YOU SOPHIA  -   Franz Ferdinand     https://www.youtube.com/watch?v=6zuHXbjlaJQ
GAVRILO  -   The Dreadnoughts     https://www.youtube.com/watch?v=peCu-i6XT88
ASSASSINATION IN SARAJEVO  -   Svetlana Spajic-Latinovic     https://www.youtube.com/watch?v=7t84hvPOOeg

Assassination of Archduke Franz Ferdinand from Wikipedia     https://en.wikipedia.org/wiki/Assassination_of_Archduke_Franz_Ferdinand