Liberal arts education
is the answer
The American pre-civil war got very wide spread because people started protesting toward the government. Slavery was a big issue because the south slaves were not free but the other part of the state which is north america made slaves free. There was speeches that started to encourage slavery to stop because of the treatment of the slaves and that everyone should be equal throughout the country.
Since in colonial North America, many people did not have the luxuries we have now, their entire lives revolved around work. Without a good harvest season or another product to trade for food, a family could easily go hungry and starve to death. As exemplified through Jamestown's "Starving Time," the leader, whose name escapes me at this time, decided that if the colonists were not willing to work, they would not receive any food. The second question is more of an opinion question that I cannot answer for you.
The double bar ends the piece, in music.