How many southern states did Lincoln win during the election of 1860?
Lincoln won 21 southern State during the election of 1860.
Why did the election of Abraham Lincoln who had promised not to disturb slavery in states where it existed lead the southern state to secede?
The most immediate cause of the South's secession from the union was the election of Lincoln during the 1860 election. The South did not support Lincoln at all (in some southern states, his name didn't even appear on the ballot) and when he won the election they felt unrepresented by the government. South Carolina was the first to go.
What was the chief reason for the opposition of the south to the election of Abraham Lincoln in 1860?
The southern states feared the ascension of the Lincoln Administration to office would result in further loss of states' rights, which in turn would eventually result in the abolition of slavery. Lincoln's election as President was the last straw for many southern states, which led to their succession from the Union and the formation of the Confederate States of America.
Lincoln's election prompted secession of the Southern slave holding states because the southern slave-owning class viewed the election of an anti-slavery administration as a mortal threat. Though not an abolitionist, Lincoln was an opponent of slavery and determined to use all means at his disposal to stop its spread.