paragraph_text: The United States Oath of Allegiance, officially referred to as the ``Oath of Allegiance, ''8 C.F.R. Part 337 (2008), is an allegiance oath that must be taken by all immigrants who wish to become United States citizens.

paragraph_text: Long Creek Bridge is a bridge that spans across Long Creek. It is from the Canada–United States border and from Estevan, Saskatchewan, Canada. The bridge was originally a wooden bridge that had reached the end of its useful life, and in 2009 work started on a new precast, pre-stressed concrete bridge as part of the federal government's National Action Plan.

paragraph_text: Motley Rice LLC is one of the largest American plaintiffs' litigation firms. Founded in 2003, Motley Rice seeks justice and accountability on behalf of people and institutions harmed by wrongdoing and negligence. The firm is currently involved in litigation seeking to hold accountable those who allegedly financed the September 11, 2001, attacks. Motley Rice is headquartered in Mount Pleasant, South Carolina, and has offices in eight cities across the United States.

paragraph_text: The Emlenton Bridge is a steel-deck truss bridge that spans the Allegheny River just south of the town of Emlenton, Pennsylvania, United States at approximately mile marker 44.4 on I-80. With a height of above the river, the Emlenton Bridge was the highest bridge in the Interstate Highway System when completed in 1968 (The Lewiston-Queenston Bridge is higher but is technically an international bridge, not part of the Interstate Highway system). This record was held until 1971 with the opening of the Fred G. Redmon Bridge near Selah, Washington.

paragraph_text: Natural Pier Bridge is a steel Warren through truss bridge spanning the Clark Fork river located west of Alberton, Montana, United States, which incorporates a natural rock outcrop as anchorage for a pier. It was nominated to the National Register of Historic Places as part of a related group of historic Montana bridges known as Montana's Historic Steel Truss Bridges and achieved listing on January 4, 2010. Built in 1917 by the Lord Construction Company of Missoula, Montana, it is one of only a few remaining bridges of its type in the state, and of those it is the only one that incorporates a natural feature in its design.

paragraph_text: The Sundial Bridge (also known as the Sundial Bridge at Turtle Bay) is a cantilever spar cable-stayed bridge for bicycles and pedestrians that spans the Sacramento River in Redding, California, United States and forms a large sundial. It was designed by Santiago Calatrava and completed in 2004 at a cost of US$23.5 million. The bridge has become iconic for Redding.

paragraph_text: The Sheely Bridge, originally known as the Carbondale Bridge, carries pedestrian traffic across the Roaring Fork River at Mill Street Park in Aspen, Colorado, United States. It is a short steel truss bridge originally located downstream in Carbondale and later moved to its present location.

paragraph_text: Creelsboro Natural Bridge (more commonly referred to as Rock House or the Rockhouse) is a natural bridge in southwestern Russell County, Kentucky, United States. It is located near the community of Creelsboro, approximately downstream from Wolf Creek Dam, which impounds Lake Cumberland. The Rockhouse is classified as a "meander" natural bridge because it was created by river erosion of a cliff on the outer side of a sharp meander in the river. Jim Creek flows through it before merging into the Cumberland River. With a span of , it is the seventh largest natural bridge in the United States.

paragraph_text: The Riverside Avenue Bridge is the only cast-iron bridge in Connecticut and one of a small number still in use in the United States. It carries Riverside Avenue over the New Haven Line railroad tracks in the Riverside section of Greenwich, Connecticut. The bridge was part of an earlier span built in 1871 over the Housatonic River by the New York and New Haven Railroad, and when that bridge was replaced, part of it was erected in Riverside in 1895. It was placed on the National Register of Historic Places in 1977.

paragraph_text: Giddings Road Bridge is a covered bridge spanning Mill Creek in Jefferson Township, Ashtabula County, Ohio, United States. The bridge, one of currently 16 drivable bridges in the county, is a single span Pratt truss design, built with funding from an ODOT Timber Grant. The bridge’s WGCB number is 35-04-62, and it is located approximately 2.7 mi (4.3 km) northeast of Jefferson.

paragraph_text: Meadow Creek is an unincorporated community in Summers County, West Virginia, United States. Meadow Creek is located on the New River, southwest of Meadow Bridge and north of Hinton.

paragraph_text: Newcastle is a town in Lincoln County, Maine, United States. The population was 1,752 at the 2010 census. The village of Newcastle is located in the eastern part of the town, on the Damariscotta River. Together with the village of Damariscotta linked by the Main Street bridge, they form the Twin Villages (see Damariscotta-Newcastle CDP).

paragraph_text: The Bullards Bridge (or simply Bullards Bridge) is a vertical-lift bridge that spans the Coquille River near where the river empties into the Pacific Ocean, just north of Bandon, Oregon, United States. One of only two vertical-lift bridges on the Oregon Coast Highway (U.S. Route 101), it was completed in 1954. The lift span is flanked by two camelback truss spans. It is located immediately east of Bullards Beach State Park.

paragraph_text: Motley Slough Bridge is a small bridge designated a Mississippi Landmark and on the U.S. National Register of Historic Places, located in Lowndes County, Mississippi. It is a single span iron Pratt pony truss bridge built in 1920. It "embodies the distinctive characteristics of a type, period or method of construction.".

paragraph_text: The North Grand Island Bridge is a pair of twin two-lane truss arch bridges spanning the Niagara River between Grand Island and Niagara Falls in New York, United States. Each bridge carries one direction of Interstate 190 (I-190). Both crossings are operated by the New York State Thruway Authority as part of the Niagara Thruway. The northbound span opened in 1935; the southbound span was finished in 1965.

paragraph_text: Chenango Bridge is a hamlet in the southern part of the Town of Chenango in Broome County, New York, United States. It lies where State Route 12A (Chenango Bridge Road) crosses the Chenango River. The population was 2,883 at the 2010 census, which lists the community as a census-designated place.

paragraph_text: Spencerville is an unincorporated community located in Spencer Township, DeKalb County, Indiana, United States. The only covered bridge in DeKalb County is located in Spencerville.

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: Kings Highway Bridge was located on the Nansemond River in the independent city of Suffolk, Virginia, United States. Built in 1928, it carried traffic on the Kings Highway, also known as State Route 125, for over 75 years.

paragraph_text: Bridge Tender's House is a public artwork by American artist Mikyoung Kim, located on the 14th Street Bridge in Washington, D.C., United States. "Bridge Tender's House" was commissioned through DC Commission on the Arts and Humanities.

Question: When did the state where Motley Slough Bridge is located become part of the US?
Answer: Dec. 10, 1817