I've heard a lot of people claim that the Civil War was fought for states rights and not slavery, but when I've looked into it most of these "states rights" seemed to revolve around the slavery issue (how to count slaves in population, taxes based on slavery, etc.) What other issues would have been considered states rights?
The biggest state right that came into play was the right of self determination. Is the union an agreement of states that agree to come together and if need be separate or is it a central authority from which states are told what to do