Question: When did the state where Pickwick Lake is found officially vote to secede?

full_context: Document 1: North Carolina: In 1860, North Carolina was a slave state, in which one-third of the population was enslaved. This was a smaller proportion than in many Southern states. The state did not vote to join the Confederacy until President Abraham Lincoln called on it to invade its sister state, South Carolina, becoming the last or second-to-last state to officially join the Confederacy. The title of "last to join the Confederacy" has been disputed; although Tennessee's informal secession on May 7, 1861, preceded North Carolina's official secession on May 20, the Tennessee legislature did not formally vote to secede until June 8, 1861.
Document 2: Summersville Lake: Summersville Lake is a reservoir located in the US state of West Virginia. The lake is formed by a rock - fill dam (Summersville Dam) on the Gauley River, south of Summersville in Nicholas County. It is the largest lake in West Virginia, with 2,700 acres (1,100 ha) of water and over 60 miles (97 km) of shoreline at the summer pool water level. Its maximum depth is 327 feet.
Document 3: Pickwick Lake: Pickwick Lake is the reservoir created by Pickwick Landing Dam as part of the Tennessee Valley Authority. The lake stretches from Pickwick Landing Dam to Wilson Dam.
Document 4: North Carolina: Besides slaves, there were a number of free people of color in the state. Most were descended from free African Americans who had migrated along with neighbors from Virginia during the 18th century. The majority were the descendants of unions in the working classes between white women, indentured servants or free, and African men, indentured, slave or free. After the Revolution, Quakers and Mennonites worked to persuade slaveholders to free their slaves. Some were inspired by their efforts and the language of the Revolution to arrange for manumission of their slaves. The number of free people of color rose markedly in the first couple of decades after the Revolution.
Document 5: North Carolina: On November 21, 1789, North Carolina became the twelfth state to ratify the Constitution. In 1840, it completed the state capitol building in Raleigh, still standing today. Most of North Carolina's slave owners and large plantations were located in the eastern portion of the state. Although North Carolina's plantation system was smaller and less cohesive than that of Virginia, Georgia, or South Carolina, significant numbers of planters were concentrated in the counties around the port cities of Wilmington and Edenton, as well as suburban planters around the cities of Raleigh, Charlotte, and Durham in the Piedmont. Planters owning large estates wielded significant political and socio - economic power in antebellum North Carolina, which was a slave society. They placed their interests above those of the generally non-slave - holding ``yeoman ''farmers of western North Carolina. In mid-century, the state's rural and commercial areas were connected by the construction of a 129 - mile (208 km) wooden plank road, known as a`` farmer's railroad'', from Fayetteville in the east to Bethania (northwest of Winston - Salem).
Document 6: Chickamauga Lake: Chickamauga Lake is a reservoir in the United States along the Tennessee River created when the Chickamauga Dam, as part of the Tennessee Valley Authority, was completed in 1940. The lake stretches from Watts Bar Dam at mile 529.9 (853 km) to Chickamauga Dam at mile 471.0 (758 km) making the lake 58.9 miles (94.8 km) long. It borders Rhea County, Meigs County, and Hamilton County with 810 miles (1,303 km) of shoreline and two bridges crossing it at State Highway 60 and Highway 30. The lake is commonly used for recreational and outdoor activities, especially at the southern end, due to the high population density surrounding it. It was named after the Chickamauga (tribe) of Cherokees who used to live in the area.
Document 7: Pymatuning Reservoir: Pymatuning Reservoir is a man-made lake in Crawford County, Pennsylvania and Ashtabula County, Ohio in the United States, on land that was once a very large swamp. Much of it is incorporated into two state parks: Pymatuning State Park in Pennsylvania, and Pymatuning State Park in Ohio.
Document 8: North Carolina: After 1800, cotton and tobacco became important export crops. The eastern half of the state, especially the Tidewater region, developed a slave society based on a plantation system and slave labor. Many free people of color migrated to the frontier along with their European-American neighbors, where the social system was looser. By 1810, nearly 3 percent of the free population consisted of free people of color, who numbered slightly more than 10,000. The western areas were dominated by white families, especially Scots-Irish, who operated small subsistence farms. In the early national period, the state became a center of Jeffersonian and Jacksonian democracy, with a strong Whig presence, especially in the West. After Nat Turner's slave uprising in 1831, North Carolina and other southern states reduced the rights of free blacks. In 1835 the legislature withdrew their right to vote.
Document 9: North Carolina: On November 21, 1789, North Carolina became the twelfth state to ratify the Constitution. In 1840, it completed the state capitol building in Raleigh, still standing today. Most of North Carolina's slave owners and large plantations were located in the eastern portion of the state. Although North Carolina's plantation system was smaller and less cohesive than that of Virginia, Georgia, or South Carolina, significant numbers of planters were concentrated in the counties around the port cities of Wilmington and Edenton, as well as suburban planters around the cities of Raleigh, Charlotte, and Durham in the Piedmont. Planters owning large estates wielded significant political and socio-economic power in antebellum North Carolina, which was a slave society. They placed their interests above those of the generally non-slave-holding "yeoman" farmers of western North Carolina. In mid-century, the state's rural and commercial areas were connected by the construction of a 129-mile (208 km) wooden plank road, known as a "farmer's railroad", from Fayetteville in the east to Bethania (northwest of Winston-Salem).
Document 10: North Carolina: North Carolina made the smallest per-capita contribution to the war of any state, as only 7,800 men joined the Continental Army under General George Washington; an additional 10,000 served in local militia units under such leaders as General Nathanael Greene. There was some military action, especially in 1780–81. Many Carolinian frontiersmen had moved west over the mountains, into the Washington District (later known as Tennessee), but in 1789, following the Revolution, the state was persuaded to relinquish its claim to the western lands. It ceded them to the national government so that the Northwest Territory could be organized and managed nationally.
Document 11: Tellico Reservoir: Tellico Reservoir, also known as Tellico Lake, is a reservoir in Tennessee, created by the Tennessee Valley Authority (TVA) in 1979 upon the completion of Tellico Dam. The dam impounds the Little Tennessee River and the lower Tellico River. While TVA is careful to refer to its artificial lakes as reservoirs (such as "Tellico Reservoir"), common usage tends to refer to the reservoir as "Tellico Lake". The lake is approximately 16,000 acres in surface area and provides 357 miles of shoreline.
Document 12: Widows Bar Dam: Widows Bar Lock and Dam was a dam once located along the Tennessee River in Jackson County, Alabama, USA. It was situated above the mouth of the Tennessee River, near the river's confluence with Widows Creek. The dam was completed 8 September 1924, and was designed and operated by the U.S. Army Corps of Engineers. It was serviced by a by navigation lock. When the Tennessee Valley Authority took control of flood control and navigation improvement operations in the Tennessee Valley in the 1930s, Widows Bar was considered too high maintenance, and it was dismantled as part of the construction of Guntersville Dam.
Document 13: Joe Wheeler State Park: Joe Wheeler State Park is a state-owned, public recreation area with resort features located on Wheeler Lake, an impoundment of the Tennessee River in northwest Alabama. The state park contains of land in three separate parcels and adjoins the Tennessee Valley Authority's Wheeler Dam.
Document 14: Pickwick Dam, Tennessee: Pickwick Dam (also known as Pickwick Village) is an unincorporated community in Hardin County, Tennessee, United States. Pickwick Dam is located on the Tennessee River south of the Pickwick Landing Dam. Pickwick Dam has a post office with ZIP code 38365.
Document 15: North Carolina: While slaveholding was slightly less concentrated than in some Southern states, according to the 1860 census, more than 330,000 people, or 33% of the population of 992,622, were enslaved African Americans. They lived and worked chiefly on plantations in the eastern Tidewater. In addition, 30,463 free people of color lived in the state. They were also concentrated in the eastern coastal plain, especially at port cities such as Wilmington and New Bern, where a variety of jobs were available. Free African Americans were allowed to vote until 1835, when the state revoked their suffrage in restrictions following the slave rebellion of 1831 led by Nat Turner. Southern slave codes criminalized willful killing of a slave in most cases.
ground_truth: June 8, 1861
sub_queries: What state is Pickwick Lake located? Answer: Tennessee
When did Tennessee officially vote to secede? Answer: June 8, 1861