is the anniversary of the 1914 assassination of Archduke Franz Ferdinand, presumptive heir to the Austro-Hungarian thrown.
After being shot in the neck, the Archduke's repeated last words were, "Es ist nichts" or "it is nothing", which turned out to be a bit of an under-estimation of the overall seriousness of this event.
Little known Franz Ferdinand trivia - the Archduke was Elvis's great uncle. Don't believe me? Check the remarkable family resemblance.