What 4 states succeed after fort Sumter?

After the attack on Fort Sumter in April 1861, four additional states seceded from the Union: Virginia, Arkansas, Tennessee, and North Carolina. These states joined the Confederacy, driven by various factors including regional loyalty, economic interests, and the desire to preserve slavery. Their secession contributed to the escalation of the Civil War, as they joined the original seven states that had already left the Union.