Answer:
It was needed bc slavery:
Step-by-step explanation:
The civil war had a lot of reasons for happeneing, the big one obviously being slavery. The North and South had a lot of.. disagreement on this subject. When the North won, the South wasn't happy of course because this was detrimental to their economy, but they got back on track eventually, finding other ways to farm. I wouldn't say it really brought the North and South together, it actually made a bigger rift in their relationship.
I haven't read about the Civil War in a bit so I'm not sure if it's too accurate.