It was a war between democrats and republicans. not North and South.
So try again.
What are you talking about? The mid-19th century Republicans were strong federalist, pro-banking, and pro Cronie-Capitalism. The 19th century democrats tended to be state-rights, support of the common man (unless you were black). The Republicans of that time were hated by the south, and extremely popular in the northeast.
Issues have changed since those times, and the parties have evolved, or to some degree flipped their platforms along with their regions of supporters.