No slavery had NOTHING to do with the civil war...except..
S Carolina article of secession...bitchin about the right to own slaves being threatned:
These ends it endeavored to accomplish by a Federal Government, in which each State was recognized as an equal, and had separate control over its own institutions. The right of property in slaves was recognized by giving to free persons distinct political rights, by giving them the right to represent, and burthening them with direct taxes for three-fifths of their slaves; by authorizing the importation of slaves for twenty years; and by stipulating for the rendition of fugitives from labor.
We affirm that these ends for which this Government was instituted have been defeated, and the Government itself has been made destructive of them by the action of the non-slaveholding States. Those States have assume the right of deciding upon the propriety of our domestic institutions; and have denied the rights of property established in fifteen of the States and recognized by the Constitution; they have denounced as sinful the institution of slavery; they have permitted open establishment among them of societies, whose avowed object is to disturb the peace and to eloign the property of the citizens of other States. They have encouraged and assisted thousands of our slaves to leave their homes; and those who remain, have been incited by emissaries, books and pictures to servile insurrection.
You've been taught crap history, and like many people, you believe it. What you don't grasp here is that slavery wasn't threatened, wasn't being threatened, and both President Lincoln and the representatives of the Northern states were offering a constitutional amendment to guarantee that slavery never would be threatened, and i'm quite certain you have never heard of it.
Yes, Lincoln and the Mostly Northern congress offered the South a constitutional amendment to guarantee slavery forever. The Congress passed the Amendment, and Four Northern states voted to ratify it.