"Austria-Hungary<span> declared war on </span>Serbia<span> after serbian nationalists assassinated Archduke Franz Ferdinand and his wife, this was not necessary as only a few serbians participated and these assassinations usually did not result in war" (prezi.com)</span>
They got taken over by Germany.
Consent of the governed
Documents
Tyranny
Czar Peter the Great
Revolution
Equality
Pretty sure that’s it :)