The Austro-Hungarian Empire blamed the entire Serbian country for the death of the Archduke instead of the terrorist group responsible. The Bosnians were close to the Serbs, and both countries took great offense to the blame.
For PLATO:
Maya: Created hieroglyphic writing system
Developed the accurate calendar systems
Constructed Chichen Itza
Aztec: Built Tenochtitlan
Sustained 20mil population
Grew floating gardens
Americans were at first excited in help of the upset. Notwithstanding, after some time divisions of sentiment ended up clear among federalists and enemies of federalists.
I think