The Kansas Nebraska Act repealed the Missouri Compromise (of 1820).
The system of money in America between 1776 and 1789 was a hodgepodge.
It consisted of British, French, Continental, and Spanish currencies,
and base metals or gold and silver. After Spain entered the war on the
side of the United States, the standard currency became the Spanish
dollar. Still, other currencies were accepted. After the war ended, The
United States went on a gold standard and the government stopped issuing
paper currency, but individual banks issued paper currency.
The system of government by privileged citizens or the upper class is called an "aristocracy," with the leaders in question usually having the most money of anyone in the society as well.