During the Southern secession of 1861 which state voted last to leave the Union?

Tennessee was the last state to vote to secede from the Union during the Southern secession of 1861. The state voted to secede on June 8, 1861, after initially rejecting secession in a referendum held in February. Tennessee's decision was influenced by a combination of factors, including political pressures and the prevailing sentiments in different regions of the state. Ultimately, Tennessee became the last state to join the Confederacy during the Civil War.