I grew up in the Balkans and was taught in school that assassination of Franc Ferdinand in Sarajevo was jusified act to free South Slavic people from German oppression. To justify the aftermath of WWI - the education at the time said the World War I would have happened anyway.

Moved out West and obviously introduced to a few different interpretations of the event, but it took a few years to start to question what I was taught early on and that maybe it is not 100% what would have happend in regards to WWI if not for the assassination.