Why is West Virginia West Virginia?

At the time of the American revolution the territory of Virginia (the largest colony and state) included what is now west virginia and part of southern Ohio. When the state of Virginia seceded from the United States to join the Confederacy in 1861, the majority of people in the western part of the state disagreed with that decision, and effectively seceded from Virginia. West Virginia was admitted as a state in the United States on June 20, 1863.