[Mature]South Carolina.... and The "Confederate Battle Flag"

[Deadpool]

The confederates had more than one battle flag, which only a few of had parts of the Rebel flag incorporated.

The Rebel flag gained most of its notoriety during Civil Rights times, where it was used to promote bigotry.



EDIT: While not all of the issues between the Union and Confederacy revolved around slavery (some was over taxes and such), but it was a main component.

Had to do with southerners wanting to move into new western north states, and bringing their slaves. A big conflict, because the new northern states were free-states, but slaves were considered property and you can't make someone's property illegal when they move to another state.