paragraph_text: Mound Bottom is a prehistoric Native American complex in Cheatham County, Tennessee, located in the Southeastern United States. The complex, which consists of earthen platform and burial mounds, a 7-acre central plaza, and habitation areas, was occupied between approximately 1000 and 1300 AD, during the Mississippian period.

paragraph_text: Seebert is an unincorporated community in Pocahontas County, West Virginia, United States. Seebert is located on the Greenbrier River east of Hillsboro.

paragraph_text: Pocahontas Mounds (22 HI 500) is an archaeological site from the Plaquemine Mississippian culture in Hinds County, Mississippi, dating from 800 to 1300 CE. Two mounds from the site were added to the NRHP on two separate occasions, "Pocahontas Mound A" on November 25, 1969 as NRIS number 69000365 and "Pocahontas Mound B" on April 11, 1972 as NRIS number 72000694.

paragraph_text: Buckeye is an unincorporated community in Pocahontas County, West Virginia, United States. Buckeye is located along U.S. Route 219 southwest of Marlinton. As of mid 2017, there is no longer a post office located in Buckeye.

paragraph_text: Rocky Mound is a town in Camp County, Texas, United States. The population was 75 at the 2010 census, down from 93 at the 2000 census.

paragraph_text: The Nacoochee Mound (Smithsonian trinomial 9WH3) is an archaeological site on the banks of the Chattahoochee River in White County, in the northeast part of the U.S. state of Georgia, at the junction of Georgia State Route 17 and Georgia State Route 75. First occupied as early as 100-500 CE, the site was later developed and occupied more intensively by peoples of the South Appalachian Mississippian culture (a regional variation of the Mississippian culture) from 1350 to 1600 CE. One of their characteristic platform mounds is located at the site. A professional archeological excavation revealed a total of 75 human burials, with artifacts that support dating of the site.

paragraph_text: Pocahontas is a city in Randolph County, Arkansas, United States, along the Black River. According to 2006 Census Bureau estimates, the population of the city was 6,765. The city is the county seat of Randolph County.

paragraph_text: Wingville is an unincorporated community in Baker County, Oregon, United States. Wingville lies at the intersection of Wingville Lane and Old Wingville Road northwest of Baker City and northeast of Pocahontas.

paragraph_text: Mound Township is one of twelve townships in Warren County, Indiana, United States. According to the 2010 census, its population was 418 and it contained 183 housing units.

paragraph_text: Warm Springs is an unincorporated community in Randolph County, Arkansas, United States. Warm Springs is located on Arkansas Highway 251, north-northwest of Pocahontas. Warm Springs has a post office with ZIP code 72478.

paragraph_text: In 1817 elected delegates wrote a constitution and applied to Congress for statehood. On Dec. 10, 1817, the western portion of Mississippi Territory became the State of Mississippi, the 20th state of the Union. Natchez, long established as a major river port, was the first state capital. As more population came into the state and future growth was anticipated, in 1822 the capital was moved to the more central location of Jackson.

paragraph_text: Joe Creason Park is a municipal park in Louisville, Kentucky, United States. Located in the Poplar Level neighborhood, it is in roughly the central portion of the city. The park adjoins and connects to Beargrass Creek State Nature Preserve, and both were originally part of the same property prior to becoming parks.

paragraph_text: Thorny Creek is an unincorporated community in Pocahontas County, West Virginia, United States. Thorny Creek is located on the Greenbrier River northeast of Marlinton.

paragraph_text: Redmond is a town in Sevier County, Utah, United States. The population was 788 at the 2000 census. Redmond was first settled in 1876, and named for red mounds to the west of the town.

paragraph_text: Nemours is an unincorporated community in Mercer County, West Virginia, United States. Nemours is located along West Virginia Route 102 east of Pocahontas, Virginia. Nemours has a post office with ZIP code 24738.

paragraph_text: Indian Mounds Regional Park is a public park in Saint Paul, Minnesota, United States, featuring six prehistoric Native American burial mounds overlooking the Mississippi River. The oldest mounds were constructed 1,500 -- 2,000 years ago by people of the Hopewell tradition. Later the Dakota people interred their dead there as well. At least 31 more mounds were destroyed by development in the late 19th century. They were the tallest Native American mounds in Minnesota or Wisconsin (except for the unique 45 - foot (14 m) Grand Mound outside International Falls, Minnesota), and comprise one of the northwesternmost Hopewellian sites in North America. Indian Mounds Regional Park is a component of the Mississippi National River and Recreation Area, a unit of the National Park System. The Mounds Group is listed on the National Register of Historic Places. The 2014 nomination document provides a description of the archaeology and the context.

paragraph_text: Dunmore is an unincorporated community in Pocahontas County, West Virginia, United States. Dunmore is located at the junction of West Virginia Route 28 and West Virginia Route 92 northeast of Marlinton. Dunmore has a post office with ZIP code 24934.

paragraph_text: Wheatland is a town in Vernon County, Wisconsin, United States. The population was 533 at the 2000 census. The unincorporated communities of Red Mound, and Victory are located in Wheatland.

paragraph_text: Hosterman is an unincorporated community in Pocahontas County, West Virginia, United States. Hosterman is located on the Greenbrier River south-southwest of Durbin. The community was originally named Collins; its name was changed to Hosterman in 1902. The community presently has the name of Theodore G. Hosterman, a worker in the local lumber industry.

paragraph_text: Lewistown is a city in Fulton County, Illinois, United States. It was named by its founder, Ossian M. Ross, after his oldest son, Lewis W. Ross. The population was 2,384 at the 2010 census, down from 2,522 at the 2000 census. It is the county seat of Fulton County. Located in central Illinois, it is southwest of Peoria. It is the source of "Spoon River Anthology" by Edgar Lee Masters, who lived there. Native American burial mounds are nearby at Dickson Mounds off Illinois Route 97.

Question: When did the state where Pocahontas Mounds is located become part of the United States?
Answer: Dec. 10, 1817