History: American Civil War (1861-1865)

Fears of slave revolts and abolitionist propaganda made the South militantly hostile to abolitionism. Southerners complained that it was the North that was changing, and was prone to new "isms", while the South remained true to historic republican values of the Founding Fathers (many of whom owned slaves, including Washington, Jefferson and Madison). Lincoln said that Republicans were following the tradition of the framers of the Constitution (including the Northwest Ordinance and the Missouri Compromise) by preventing expansion of slavery. The issue of accepting slavery (in the guise of rejecting slave-owning bishops and missionaries) split the largest religious denominations (the Methodist, Baptist and Presbyterian churches) into separate Northern and Southern denominations. Industrialization meant that seven European immigrants out of eight settled in the North. The movement of twice as many whites leaving the South for the North as vice versa contributed to the South's defensive-aggressive political behavior.
Nationalism and honor
Nationalism was a powerful force in the early 19th century, with famous spokesmen like Andrew Jackson and Daniel Webster. While practically all Northerners supported the Union, Southerners were split between those loyal to the entire United States (called "unionists") and those loyal primarily to the southern region and then the Confederacy. C. Vann Woodward said of the latter group, "A great slave society...had grown up and miraculously flourished in the heart of a thoroughly bourgeois and partly puritanical republic. It had renounced its bourgeois origins and elaborated and painfully rationalized its institutional, legal, metaphysical, and religious defenses....When the crisis came it chose to fight. It proved to be the death struggle of a society, which went down in ruins." Insults to Southern national honor included Uncle Tom's Cabin (1854) and John Brown in 1859.