Civilizations developed around rivers because their waters provided places to hunt and fish.
Also, as the rivers flooded, the lands around them became fertile. This allowed them to support farming.
In addition, because they provided a steady supply of drinking water.
Moreover, goods and people could be transported easily
Finally, River valleys not only have water, they also often have a broad, flat floodplain that is readily adapted to agriculture.
In the postwar period, disillusionment influenced the work of many artists and writers, prompting them to question and examine "<span>war’s inevitability" among other things. </span>
The north was anti-slavery, meaning they didn’t like the idea of having slaves. The south however was pro-slavery, meaning that they supported the idea of having slaves, and have them they did. Slavery is one of the reasons for the Civil War.