How did the north and the south each view the various events of the 1850s?

In 19th century America, the North and the South viewed various political and social events that occurred in the 1850s in a generally opposed fashion. Whether blood was shed due to slavery/anti-slavery tensions, or political legislation was proposed or passed, or threats were made or acted upon, and so forth, the general tendency was for Northerners to see relevant events in terms of gains for the Union at large or for anti-slavery developments. Southerners, on the other hand, interpreted the same events from their diametrically opposed position -- which favored any confirmations of slave-holding as legitimate and, just as importantly, any increase in the rights of states to determine internal affairs for themselves.