Tennessee , officially the State of Tennessee, is a state in the Southeastern region of the United States. Tennessee is the 36th largest by area and the 16th most populous of the 50 states. It is bordered by Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, Arkansas to the southwest, and Missouri to the northwest. Tennessee is geographically, culturally, and legally divided into three Grand Divisions of East, Middle, and West Tennessee. Nashville is the state's capital and largest city, and anchors the state's largest metropolitan area. Shelby County is its most populous administrative division, and contains its second-largest city, Memphis. The state's population as of the 2020 United States census is approximately 6.9 million. Tennessee is rooted in the Watauga Association, a 1772 frontier pact generally regarded as the first constitutional government west of the Appalachian Mountains. Its name is derived from "Tanasi", a Cherokee town in the eastern part of the state that existed before the first European American settlement. Tennessee was initially part of North Carolina, and later the Southwest Territory, before its admission to the Union as the 16th state on June 1, 1796. It earned the nickname "The Volunteer State" early in its history due to a strong tradition of military service. A slave state until the American Civil War, Tennessee was politically divided, with its western and middle parts supporting the Confederacy and the eastern region harboring pro-Union sentiment. As a result, Tennessee was the last state to formally join the Confederacy and the first readmitted to the Union after the war. During the 20th century, Tennessee transitioned from a predominantly agrarian society to a more diversified economy. This was aided in part by massive federal investment in the Tennessee Valley Authority (TVA) and the city of Oak Ridge, which was establish…

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