This Saturday is the 100th anniversary of the murder of Archduke Franz Ferdinand of Austria — heir to the Austro-Hungarian throne — and his wife Sophie – which set in motion the start of WWI exactly one month later. 8.5 million soldiers were killed, 21.2 million were wounded, and 7.8 million were prisoners or went missing for a total of 37.5 million casualties (excluding civilians) or 57.5% of all mobilized forces!