When President Lincoln was elected president in 1860, much of the south reacted. Even before Lincoln took office, South Carolina called a convention in the south and delegates voted to secede, thus spurring the Civil War that would follow.
They seceded from the Union. (on December 20, 1860)
Seceded from the USA
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...victory of Lincoln in the November 1860 election.
the election of Abraham Lincoln as President.
DecemberDecember 20, 1860 (following the election of Abraham Lincoln to the Presidency).
South Carolina voted to secede from the Union.
Based on the election of Abraham Lincoln to the US presidency, South Carolina left the Union on December 20, 1860.
Abraham Lincoln
As a consequence of Lincoln’s election, a special convention of the South Carolina legislature votes to secede from the Union.
South Carolina voted to secede from the USA in December 1860, because the election had been won by Lincoln on a ticket of no new slave-states, so the South was doomed to be outvoted in Congress. By the time Lincoln was inaugurated in March, six more states had joined South Carolina in the Confederate States of America.
December 1860, when South Carolina seceded, in reaction to Lincoln's election win.
They seceded from the USA, starting with South Carolina.
South Carolina had a long record of not liking Federal interference in their affairs. They were also a strong slave minded state. When the antislavery Republican, Abraham Lincoln won the 1860 presidential election, South Carolina seceded from the US. This happened on December 20, 1860.