paragraph_text: The Hannah Maria Libby Smith House, also known as the Arnel Milner Home, is a historic house located in Provo, Utah, United States. It is listed on the National Register of Historic Places.

paragraph_text: The Territory of Utah was an organized incorporated territory of the United States that existed from September 9, 1850, until January 4, 1896, when the final extent of the territory was admitted to the Union as the State of Utah, the 45th state.

paragraph_text: The U. J. Cleveland House (also known as the Thomas Smith House) is a historic house located at 551 Charles Street in Mobile, Alabama. It is locally significant as an intact Gulf Coast Cottage with an unusual interior plan.

paragraph_text: The John C. Sharp House, located off Utah 36 in Vernon, Utah, is an Italianate house that was built in 1888.

paragraph_text: John Blair Smith Todd (April 4, 1814 – January 5, 1872) was a Delegate from Dakota Territory to the United States House of Representatives and a general in the Union Army during the American Civil War.

paragraph_text: The C. Burton Hotel, also known as the Sycamore House, is located on NY 55 a mile west of Grahamsville, New York, United States. It is a wooden Greek Revival structure dating to 1851.

paragraph_text: The Ackerman-Smith House is a historic house located in Saddle River, Bergen County, New Jersey, United States, built in 1760. It was added to the National Register of Historic Places on August 29, 1986.

paragraph_text: The Territory of Alabama (sometimes Alabama Territory) was an organized incorporated territory of the United States. The Alabama Territory was carved from the Mississippi Territory on August 15, 1817 and lasted until December 14, 1819, when it was admitted to the Union as the twenty-second state.

paragraph_text: The John Smith House is located on Albany Avenue (NY 32) in Kingston, New York, United States. It is a wood frame house in the Italianate architectural style built in the mid-19th century.

paragraph_text: On May 15, 2013, Resident Commissioner Pierluisi introduced H.R. 2000 to Congress to "set forth the process for Puerto Rico to be admitted as a state of the Union," asking for Congress to vote on ratifying Puerto Rico as the 51st state. On February 12, 2014, Senator Martin Heinrich introduced a bill in the US Senate. The bill would require a binding referendum to be held in Puerto Rico asking whether the territory wants to be admitted as a state. In the event of a yes vote, the president would be asked to submit legislation to Congress to admit Puerto Rico as a state.

paragraph_text: The Admission to the Union Clause of the United States Constitution, oftentimes called the New States Clause, and found at Article IV, Section 3, Clause 1, authorizes the Congress to admit new states into the United States beyond the thirteen already in existence at the time the Constitution went into effect.

paragraph_text: The Texas annexation was the 1845 incorporation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state on December 29, 1845.

paragraph_text: Union Hill is an unincorporated community located within Denville Township in Morris County, New Jersey, United States. The Union Hill section comprises the southernmost part of Denville and is mostly south of Route 10. Although one of the oldest settled parts of Denville, it is characterized by having the most recent housing development in the town. Union Hill is the home of the Denville Township School District Board of Education, housed in Denville's first school, a small one-room structure.

paragraph_text: James Peyton Smith, known as James P. Smith (September 6, 1925 – August 14, 2006), was a Democratic member of the Louisiana House of Representatives from Union and Morehouse parishes in North Louisiana, a position which he held from 1964 to 1972 during the administration of Governor John McKeithen. In the first term he represented only Union Parish. Thereafter from 1972 to 1992, he was the sergeant-at-arms of the Louisiana State Senate.

paragraph_text: The Other C. Wamsley House built in 1909 is an historic octagon house located at 200 North 5th Street in Hamilton, Montana, United States. On August 26, 1988, it was added to the National Register of Historic Places.

paragraph_text: Meng House, also known as The Hill House and Clough-Wallace House, is a historic home located at Union in Union County, South Carolina, United States. It was built about 1832, and is a two-story, Greek Revival style frame dwelling. It features two two-story Doric order porticos supported by four stucco-over-brick columns. It has a two-story wing that houses the kitchen with bathrooms above.

paragraph_text: The Territory of Dakota was an organized incorporated territory of the United States that existed from March 2, 1861, until November 2, 1889, when the final extent of the reduced territory was split and admitted to the Union as the states of North and South Dakota.

paragraph_text: Abiel Smith School, founded in 1835, is a school located at 46 Joy Street in Boston, Massachusetts, United States, adjacent to the African Meeting House. It is named for Abiel Smith, a white philanthropist who left money (an estimated $4,000) in his will to the city of Boston for the education of black children.

paragraph_text: Elven C. Smith House is a historic home located at Williamson, Mingo County, West Virginia. It was built in 1938, in a Neo-Classical Revival / Georgian Revival style. It is a red brick building with a hipped roof and features a two-story, flat roofed portico supported by fluted columns. Also on the property is a stone retaining wall and monumental stairway in the landscaped gardens.

paragraph_text: West Virginia became a state following the Wheeling Conventions of 1861, after the American Civil War had begun. Delegates from some Unionist counties of northwestern Virginia decided to break away from Virginia, although they included many secessionist counties in the new state. West Virginia was admitted to the Union on June 20, 1863, and was a key border state during the war. West Virginia was the only state to form by separating from a Confederate state, the first to separate from any state since Maine separated from Massachusetts, and was one of two states admitted to the Union during the American Civil War (the other being Nevada). While a portion of its residents held slaves, most of the residents were yeomen farmers, and the delegates provided for gradual abolition of slavery in the new state constitution.

Question: When did the state where Elven C. Smith built his house get into the Union?
Answer: June 20, 1863