fallacies

“The secession of South Carolina yielded the immediate secession of many other southern states.” This is a bandwangon appeal fallacy. I could correct this mistake by providing a source or more evidence to show that it is an accepted belief in the academic community.
“The status of South Carolina‚Äôs farming class and merchants in urban areas was deteriorating and they certainly knew the position that Northern policies were putting them in with tariffs and abolition of slavery, which is a big part of their economic success.” I do the same thing again here with bandwagon appeal. I made a counter statement to what the author had stated, but didnt back it up.