That would be the Anti-Federalists who strongly favored them. They were created by John Adams. Hope this helps!
In the early 1900s, African Americans wanted to leave the south because of poor economic conditions (share cropping, etc) and racial discrimination. Slavery had just been abolished in 1865, so people hadn't quite accepted the idea of racial equality. It can be argued that we still haven't.
Because of the geography of Greece, it was difficult to form bigger cities, so they tended to form smaller, more localized government systems.
One reason why the Roman Empire produced more coins was because the empire was oftentimes expanding at great speed. Another reason was that people would chip the sides of the coins off, so replacements were needed.