Lincoln's Election and Southern Secession By schesser Apr 1, 1860 Democrat Convention At the Democrat Convention 50 Southern Democrats walk out of the convention. May 2, 1860 Republican nominee Republicans nominate Lincoln for President Jun 3, 1860 Democrats Split Nov 4, 1860 Lincoln wins election Dec 20, 1860 South Carolina Secedes Period: Dec 20, 1860 to Feb 1, 1861 Deep South Secedes Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas join South Carolina Feb 5, 1861 Confederate States of America is formed Mar 6, 1861 Lincoln is inaugurated