What states chose to secede after the confederates fired on fort Sumter?

After the Confederate attack on Fort Sumter in April 1861, four additional states chose to secede from the Union: Virginia, Arkansas, Tennessee, and North Carolina. These states joined the original seven that had already seceded, forming the Confederate States of America. The decision to secede was driven by a combination of factors, including a commitment to states' rights and the preservation of slavery.