The correct answer is Austria-Hungary
Nationalism started rising after numerous years of wars during the 19th century. Austria-Hungary believed that it had the right to be the great empire that it used to be and that it partially was at the moment. That's why things like world war 1 happened since countries wanted to establish themselves as great.
Her name is Elly Cochran
:))
It was actually a city state at first, Through conquest, trade deals, and luck/resources. They were able to become an empire. Also reorganization of the Roman Legion helped.
It violated the Missouri compromise of 1820