Question: When did the state where Raton Municipal Airport is located become part of the US?

full_context: Document 1: Dakota Territory: 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.
Document 2: Ticonderoga Municipal Airport: Ticonderoga Municipal Airport is a public use airport located two nautical miles (4 km) northeast of Ticonderoga, a hamlet in the Town of Ticonderoga, Essex County, New York, United States. The airport is owned by the Town of Ticonderoga. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" facility.
Document 3: Southwest Territory: The Territory South of the River Ohio, more commonly known as the Southwest Territory, was an organized incorporated territory of the United States that existed from May 26, 1790, until June 1, 1796, when it was admitted to the United States as the State of Tennessee. The Southwest Territory was created by the Southwest Ordinance from lands of the Washington District that had been ceded to the U.S. federal government by North Carolina. The territory's lone governor was William Blount.
Document 4: Dodge City Regional Airport: Dodge City Regional Airport is three miles east of Dodge City, in Ford County, Kansas. It is used for general aviation and was at one point subsidized by the Essential Air Service program.
Document 5: Florida Territory: The Territory of Florida was an organized incorporated territory of the United States that existed from March 30, 1822, until March 3, 1845, when it was admitted to the Union as the State of Florida. Originally the Spanish territory of La Florida, and later the provinces of East and West Florida, it was ceded to the United States as part of the 1819 Adams -- Onís Treaty. It was governed by the Florida Territorial Council.
Document 6: New Mexico Territory: The Territory of New Mexico was an organized incorporated territory of the United States that existed (with varying boundaries) from September 9, 1850, until January 6, 1912, when the remaining extent of the territory was admitted to the Union as the State of New Mexico, making it the longest - lived organized incorporated territory of the United States, lasting approximately 62 years.
Document 7: Bakersfield Municipal Airport: Bakersfield Municipal Airport is a city-owned public-use airport located three nautical miles (6 km) south of the central business district of Bakersfield, a city in Kern County, California, United States. The airport is mostly used for general aviation.
Document 8: Rocky Mountain Metropolitan Airport: Rocky Mountain Metropolitan Airport is a public-use airport located in Broomfield, Colorado, United States. The airport is owned and operated by Jefferson County and is situated midway between Denver and Boulder on U.S. Highway 36. It is located sixteen miles northwest of the central business district of Denver, and is the closest airport to downtown Denver. The airport covers and has three runways. Formerly known as Jefferson County Airport or Jeffco Airport, the airport was renamed Rocky Mountain Metropolitan Airport on October 10, 2006 although it is sometimes referred to as Rocky Mountain Regional Airport, e.g. 2007-2012 county planning documents.
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: New Mexico: Inhabited by Native Americans for thousands of years before European exploration, it was colonized by the Spanish in 1598 as part of the Imperial Spanish viceroyalty of New Spain. It was named Nuevo México after the Aztec Valley of Mexico by Spanish settlers, 223 years before the establishment of the present - day country of Mexico. The present - day state of New Mexico was not named after, nor is it a part of, Mexico. Its geographic characteristics made settlement and effective political control difficult which prompted Mexico's invasion and control of the area from 1824 to 1846. New Mexico's Spanish origins made cultural integration with Mexico unsuitable, which sparked the Revolt of 1837 and a growing economic association with the expanding United States. The 1848 Mexican -- American War indirectly capitalized on this tension and created the U.S. New Mexico Territory. It was admitted to the Union as the 47th state on January 6, 1912.
Document 11: Rodeo Municipality: Rodeo is one of the 39 municipalities of Durango, in north-western Mexico. The municipal seat lies at Rodeo. The municipality covers an area of 1,854.9 km².
Document 12: Tunica Municipal Airport: Tunica Municipal Airport is a public use airport located one nautical mile (2 km) east of the central business district of Tunica, in Tunica County, Mississippi, United States. It is owned by the Tunica County Airport Commission. Also known as Tunica Airport, it should not be confused with the 10 acre privately owned, public use Tunica Airport located south of the center of town, which has been recently changed to Ralph M Sharpe Airport.
Document 13: Raton Municipal Airport: Raton Municipal Airport (Crews Field) is 12 miles southwest of Raton, in Colfax County, New Mexico. The National Plan of Integrated Airport Systems for 2011–2015 called it a "general aviation" facility.
Document 14: Phillips Flying Ranch Airport: Phillips Flying Ranch Airport is a public airport located fifteen miles (24.1 km) southeast of the central business district (CBD) of Rockwall, in Rockwall County, Texas, United States. The airport itself is located in Hunt County
Document 15: New Mexico: Inhabited by Native Americans for thousands of years before European exploration, it was colonized by the Spanish in 1598 as part of the Imperial Spanish viceroyalty of New Spain. In 1563, it was named Nuevo México after the Aztec Valley of Mexico by Spanish settlers, 223 years before the establishment and naming of the present - day country of Mexico; thus, the present - day state of New Mexico was not named after the country today known as Mexico. Its geographic characteristics made settlement and effective political control difficult which prompted Mexico's invasion and control of the area from 1824 to 1846. New Mexico's Spanish origins made cultural integration with Mexico unsuitable, which sparked the Revolt of 1837 and a growing economic association with the expanding United States. The 1848 Mexican -- American War indirectly capitalized on this tension and created the U.S. New Mexico Territory. It was admitted to the Union as the 47th state on January 6, 1912.
ground_truth: January 6, 1912
sub_queries: In which state is Raton Municipal Airport located? Answer: New Mexico
when did New Mexico become part of the us Answer: January 6, 1912