Land and water differ into the absorption and releasing of heat, the land heats up quicker than the water, and the land also cools off quicker than the water. So when the air is hotter over the land (during the day), then the air masses are moving from the sea to the land cause they are cooler and heavier. When the air is cooler over the land (during the night), then the air masses move from the land towards the water.
Probably the greek goddess Athena.
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.