USA HISTORY

Detailed explanation-1: -South Carolina became the first state to secede from the federal Union on December 20, 1860. The victory of Abraham Lincoln in the 1860 presidential election triggered cries for disunion across the slaveholding South.

Detailed explanation-2: -The declaration stated the primary reasoning behind South Carolina’s declaring of secession from the U.S., which was described as “increasing hostility on the part of the non-slaveholding States to the Institution of Slavery".

Detailed explanation-3: -The secession of South Carolina precipitated the outbreak of the American Civil War in Charleston Harbor on April 12, 1861.