Question: When did the city where Eagle Twin was formed become the capitol of Utah?

full_context: Document 1: Belong (band): Belong is an American experimental music duo composed of Turk Dietrich and Michael Jones. The group formed in New Orleans in 2002. Their debut album, "October Language", was recorded in 2004 and released in 2006. The duo's sound blends ambient styles, with a focus on guitar textures. Reviews have made comparisons to current electronica artists like Fennesz and Tim Hecker, as well as the early 1990s shoegazing sound attributed to bands such as My Bloody Valentine and The Jesus and Mary Chain. Guitars and synthesizers are run through various effects to produce the band's sound.
Document 2: Salt Lake City: Salt Lake City (often shortened to Salt Lake or SLC) is the capital and the most populous municipality of the U.S. state of Utah. With an estimated population of 190,884 in 2014, the city is the core of the Salt Lake City metropolitan area, which has a population of 1,153,340 (2014 estimate). Salt Lake City is further situated within a larger metropolis known as the Salt Lake City - Ogden - Provo Combined Statistical Area. This region is a corridor of contiguous urban and suburban development stretched along an approximately 120 - mile (190 km) segment of the Wasatch Front, comprising a population of 2,423,912 as of 2014. It is one of only two major urban areas in the Great Basin (the other is Reno, Nevada).
Document 3: The Path of Totality: Korn frontman Jonathan Davis describes the new album as "very well-rounded, with a mix of mellow, upbeat tracks; possibly the most well-proportioned Korn album of all time." In a new biography on Roadrunner Records' official website, Jonathan Davis declares "The Path of Totality" as "future metal." "We're mixing metal and electro music, and you're not supposed to do that. Since day one, Korn has always been all about going against the grain, experimenting, and trying to take music different places."
Document 4: Eagle Twin: Eagle Twin is an American metal band formed in Salt Lake City, Utah by singer/guitarist Gentry Densley and drummer Tyler Smith. Eagle Twin's music could be broadly classified as doom metal or sludge metal, but also touches on progressive rock, blues rock, jazz fusion and psychedelic rock, featuring lengthy instrumental passages and Densley's gruff, half-chanted vocals, which occasionally veer into overtone singing.
Document 5: Stone Temple Pilots: Stone Temple Pilots (often abbreviated as STP) are an American rock band from San Diego, California, that originally consisted of Scott Weiland (lead vocals), brothers Robert DeLeo (bass, backing vocals) and Dean DeLeo (guitars), and Eric Kretz (drums). From the band's formation in 1989, its line - up remained unchanged until the firing of Weiland in February 2013. Linkin Park vocalist Chester Bennington joined the band in May 2013. In November 2015, Bennington left the band to focus solely on Linkin Park. On December 3, 2015, Weiland was found dead on his tour bus before a performance with his band The Wildabouts. In 2016, the band launched an online audition for a new lead vocalist. On July 20, 2017, Bennington was found dead at his home. His death was ruled as suicide by hanging. On November 14, 2017, Jeff Gutt became the new singer of the band.
Document 6: History of Salt Lake City: The Congress organized the Utah Territory out of the ``State of Deseret ''in 1850, and a few months later on January 6, 1851 the city was formally organized as`` The City of the Great Salt Lake''. Originally, Fillmore, Utah was the territorial capital, but in 1856 it was moved to Salt Lake City, where it has stayed ever since. The city's name was officially changed to ``Salt Lake City ''at the same time.
Document 7: Celestiial: Celestiial is a funeral doom metal band from Minnesota. Initially consisting only of Tanner R. Anderson (vocals, harp, guitars), the band was later joined by Jason William Walton (bass) and Timothy Glenn (percussion). Celestiial is known for using numerous instruments in its music, combining traditional folk instruments with those more typically used in metal music, as well as sampling the sounds of the natural world. Celestiial's music is intended to evoke images of the natural world.
Document 8: Salt Lake City: The Mormon pioneers organized a new state called Deseret and petitioned for its recognition in 1849. The United States Congress rebuffed the settlers in 1850 and established the Utah Territory, vastly reducing its size, and designated Fillmore as its capital city. Great Salt Lake City replaced Fillmore as the territorial capital in 1858, and the name was later abbreviated to Salt Lake City. The city's population continued to swell with an influx of Mormon converts and Gold Rush gold seekers, making it one of the most populous cities in the American Old West.
Document 9: Utah Territory: 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.
Document 10: Evelyn Evelyn: Evelyn Evelyn are a musical duo formed by Amanda Palmer (of The Dresden Dolls) and Jason Webley. According to the fictional backstory described by Palmer and Webley, the duo consists of conjoined twin sisters (aka "Eva" and "Lyn"), Evelyn and Evelyn Neville, who were discovered in 2007 by Palmer and Webley. The twins are actually portrayed by Palmer and Webley, dressed in connected garments.
Document 11: Mormon pioneers: According to church belief, God inspired Brigham Young, Joseph Smith's successor as President of the Church, to call for the Saints (as church members call themselves) to organize and head West, beyond the western frontier of the United States (into what was then Mexico, though the U.S. Army had already captured New Mexico and California in late 1846). During the winter of 1846 - 47, Latter - day Saint leaders in Winter Quarters and Iowa laid plans for the migration of the large number of Saints, their equipment, and their livestock. It was here that Brigham Young first met Thomas L. Kane, a non-Mormon from Philadelphia with deep personal connections to the Polk administration. Kane obtained permission for the Mormons to winter on Indian territory, and the site was originally called Kanesville. Brigham Young continued to trust Kane throughout his own lifetime, particularly as an intermediary with the often hostile Federal government. This major undertaking was a significant test of leadership capability and the existing administrative network of the recently restructured Church. For his role in the migration, Brigham Young is sometimes referred to as the ``American Moses. ''
Document 12: Salt Lake City: Salt Lake City (often shortened to Salt Lake or SLC) is the capital and the most populous municipality of the U.S. state of Utah. With an estimated population of 190,884 in 2014, the city is the core of the Salt Lake City metropolitan area, which has a population of 1,153,340 (2014 estimate). Salt Lake City is further situated within a larger metropolis known as the Salt Lake City -- Ogden -- Provo Combined Statistical Area. This region is a corridor of contiguous urban and suburban development stretched along an approximately 120 - mile (190 km) segment of the Wasatch Front, comprising a population of 2,423,912 as of 2014. It is one of only two major urban areas in the Great Basin (the other is Reno, Nevada).
Document 13: Admiral Twin: Admiral Twin released their debut CD, Unlucky, in December 1997 on independent New Pop Revival Records. The band consisted of Brad Becker (vocals, guitar, keyboards, and more), Mark Carr (vocals, bass), Jarrod Gollihare (vocals, drums), and John Russell (vocals, guitar). All of the members are also songwriters. In support of Unlucky, they toured with local Tulsa pop - stars, Hanson, as the opening act on the Albertane Tour in the summer of 1998, playing to sold out crowds and many thousands of fans.
Document 14: Utah: Utah ( YOO-tah,  (listen) YOO-taw) is a state in the western United States. It became the 45th state admitted to the U.S. on January 4, 1896. Utah is the 13th-largest by area, 30th-most-populous, and 11th-least-densely populated of the 50 United States. Utah has a population of more than 3 million according to the Census estimate for July 1, 2016. Urban development is mostly concentrated in two areas: the Wasatch Front in the north-central part of the state, which contains approximately 2.5 million people; and Washington County in Southern Utah, with over 160,000 residents. Utah is bordered by Colorado to the east, Wyoming to the northeast, Idaho to the north, Arizona to the south, and Nevada to the west. It also touches a corner of New Mexico in the southeast.
Document 15: Utah Territory: Territory of Utah Organized incorporated territory of the United States ← 1850 -- 1896 → → → → → Territorial coat of arms (1876) The Utah Territory upon its creation. Modern state boundaries are shown for reference. Capital Fillmore (1851 -- 1856) Salt Lake City Government Organized incorporated territory Governor 1851 -- 1858 Brigham Young 1893 -- 1896 Caleb Walton West Legislature Utah Territorial Assembly History State of Deseret 1849 Utah Organic Act September 9, 1850 Colorado Territory formed February 28, 1861 Nevada Territory formed March 2, 1861 Wyoming Territory formed July 25, 1868 Statehood January 4, 1896
ground_truth: 1858
sub_queries: Eagle Twin >> location of formation Answer: Salt Lake City
when did Salt Lake City become the capital of utah Answer: 1858