After the American civil war comes at a period known as the Reconstruction period around 1865. This period was initiated by Abraham Lincoln. It is based on the tenets that the Southern part of the country needs reconstruction of infrastructure.
However, during this period, to disenfranchise the people of color, the Southern conservative decided to unleash "Violence toward African Americans increased, " at every opportunity.
<span>"C. Napoleon and his army established a revolutionary government in Rome"</span> is the best option from the list, but it should be noted that this was only a brief unification.
"It was a new way of thinking about the universe that differed greatly from both classical thought and Church teachings." is 100 % correct good luck!!!