The Brainliest Answer!

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The immediate cause of  world war one   was   the muder  on 28th  june 1914  of archduke franz  ferdinand  of austria  by  serbian  fanatic.   austria  declared  war on serbia.  this  was  later led to the  world war 1...........

hope its help u....................

3 4 3
1)In late june 1914, 'archduke franz ferdinand' and his wife were of austria was assassinated by serbian nationalist in sarajevo , bosania                                       2) an esclation of threats and mobolisation orders followed bthe incident leading by mid-august to the out break of world war-1.        
1 4 1