And for what it's worth - in our politically correct age - the modern history has it wrong on the war between the states and what they were fighting for. On another note, I agree with the South and so did my religion - they did not side with the north for the reasons below.
The issue of the war wasn't slavery - that was the media spin and media hype of the era and had been since the drafting of the Declaration.
The South wasn't fighting FOR slavery. No. The war was about the right of a state to govern its self without federal interference and the sovereignty of the states - the core concept of the American Revolution and even the Constitution. A concept that is under attack more now than it was in 1861-1865.
The direction the nation was turning and the new government regulations, to the Southern States, were not the terms they agreed to join the nation on and the Southern states claimed that this change in national tone gave them the right to withdraw their ratification. In other words the U.S. government was now a bait-and-switch scheme where they agreed to one thing and then another thing happened and they didn't want part of it.
If one looks back over American history, early on, in the era of horse-travel, the size of a state was considerable and the cultures do vary from state to state even now as then. The Southern states were defending their heritage and their rights and viewed the North as being just as imperialist as King George was in 1776 (only four score and something years before). Hence the saying that they are "still under occupation" for 145 years now.
Anyways, if you want to read the debates between the two presidential contenders of 1860 - Lincoln and Douglas - you can read them: HERE: http://www.bartleby.com/251/ You can see there were shenanigans going on back then just as they are now....WILL THEY NEVER CEASE?