History & Social Studies
What started WW1?
WW1
![](https://d22o6al7s0pvzr.cloudfront.net/images/bookrags/qa/avatars/.defaults/unknown.png)
Asked by
GayloveKunt
Last updated by
Jill W
WW1
One of the causes of WWI was the assassination of Archduke Franz Ferdinand of Austria-Hungary by Gavrilo Princip. As a result, Austria-Hungary declared war on Serbia.