Its been like this from the country’s founding. Look at the regional split of founding father influence, 30-50 years later, which states became free states and

Its been like this from the country’s founding. Look at the regional split of founding father influence, 30-50 years later, which states became free states and which stayed, then after which state stayed in the union and joined the confederacy. Other such indicators too, Im sure but those are the easiest ones.