Confederate Secession Timeline: Before and After Lincoln's 1861 Inauguration

No. Not all Confederate states seceded before Abraham Lincoln's inauguration on March 4, 1861. Seven Deep South states seceded before; four Upper South states seceded after, triggered by Lincoln's call for troops following Fort Sumter (April 12–14).

Seceded BEFORE Inauguration (7)

These formed the Confederate States of America (Feb 4, 1861, Montgomery).

Seceded AFTER Inauguration (4)

Border States (Never Formally Seceded)

• Missouri: Dual governments; Confederate government-in-exile; never left Union officially.
• Kentucky: Declared neutrality; Confederate shadow government; remained Union.
• Maryland: Secession blocked by Union occupation.
• Delaware: Never considered secession.

West Virginia

Separated from Virginia (1863) as a Union state.

The two-wave secession defined the Civil War's political geography.