Answer:
the assassination of Austrian Archduke Ferdinand.
Explanation:
Remember, this is your own opinion. But 2 or 3 is probably a good answer.
I think it's D. Hindu- Arabic Numerals
It was the Kansas-Nebraska Act that led up to the disintegration of the Whig Party.
Well ancient Greece was an oligarchy (kind of like a democracy). Greece has City States, as well as Ancient Mesopotamia. Mesopotamia had kings though, but was ran like an Oligarchy.
