Slavery and States' Rights By parker q Mar 23, 1854 Kansas-Nebraska Act Mar 24, 1857 Dred Scott Decision Jan 28, 1861 Organised A Secession To Meet on That Date Feb 1, 1861 Adopted an Ordinance or order of secession Feb 23, 1861 Texas Voted for Secession Mar 2, 1861 Texas became the Seventh State to secede from the U.S.