Camp Ripley is a 53000 acre military and civilian training facility operated by the Minnesota National Guard located near the city of Little Falls in the central part of the state.
 The location of the camp was selected in 1929 by Ellard A. Walsh, Adjutant General of the State of Minnesota.
 The site's winter warfare training course is the primary facility used by the National Guard for winter combat exercises.
 Camp Ripley also hosts the training academy for the Minnesota State Patrol and is a popular site for athletes training to compete in winter biathlons. Most Minnesota Guard soldiers train at Camp Ripley during two-week annual training periods.
Minneapolis Auditorium was an indoor arena in Minneapolis, Minnesota.
 It hosted the NBA's Minneapolis Lakers from 1947 until they moved to the Minneapolis Armory in 1959.
 The arena held 10,000 people and was built in 1927.
 The building fell into obscurity after the opening of the Met Center in suburban Bloomington.
 It was demolished in 1989 to make way for the Minneapolis Convention Center.
The Minnesota Military Museum is the principal activity of the Military Historical Society of Minnesota (MHSM), a non-profit educational organization chartered to preserve and explain Minnesota’s military history.
 It is federally recognized as a charitable 501(c)(3) organization.
 MHSM operates the museum as a public–private partnership in cooperation with the Minnesota Historical Society and the Minnesota National Guard.
 The museum, which is open to the general public year-round, is located a few blocks inside the main gate at Camp Ripley, a state-owned 53,000 acre military training center located on the Mississippi River just north of Little Falls in central Minnesota.
 The museum is certified by the United States Army Center of Military History although its mission encompasses all branches of service.
The 34th Infantry Division Band is an Army National Guard band stationed in Rosemount, Minnesota.
 The unit is currently assigned to the Headquarters and Headquarters Battalion, 34th Infantry Division, Minnesota National Guard.
 The mission of the 34th Infantry Division Band is to provide music throughout the spectrum of military operations to instill in soldiers the will to fight and win, foster the support of citizens and promote the national interests of the United States at home and abroad.
The Minnesota State Guard, also known previously as the Minnesota Defense Force, is the currently inactive state defense force of the state of Minnesota.
 The State Guard was organized with the purpose of replacing the Minnesota National Guard in protecting the state of Minnesota while the National Guard was federalized and deployed during World War II.
 The State Guard is authorized under Minnesota law, and is recognized as a component of the organized militia of Minnesota, along with the Minnesota National Guard.
The Minnesota National Guard is composed of more than 13,000 Soldiers and Airmen, serving in 61 communities across the state.
 The Constitution of the United States specifically charges the National Guard with dual federal and state missions.
 The National Guard is the only United States military force empowered to function in a state status.
 Those functions range from limited actions during non-emergency situations to full scale law enforcement of martial law when local law enforcement officials can no longer maintain civil control.
 The National Guard may be called into federal service in response to a call by the President or Congress.
The Minnesota Army National Guard, along with the Minnesota Air National Guard, is an element of the Minnesota National Guard.
 The Constitution of the United States specifically charges the National Guard with dual federal and state missions.
 In fact, the National Guard is the only United States military force empowered to function in a state status.
 Those functions range from limited actions during non-emergency situations to full scale law enforcement of martial law when local law enforcement officials can no longer maintain civil control.
The Minneapolis Armory is located in downtown Minneapolis, Minnesota, United States.
 The armory was built for the Minnesota National Guard in 1935–36 and was listed on the National Register of Historic Places in 1985.
The Minnesota Air National Guard (MN ANG) is the air force militia of the State of Minnesota, United States of America.
 It is, along with the Minnesota Army National Guard, an element of the Minnesota National Guard.
Maj. Gen. George G. Finch became the Senior Leader of the US Air National Guard; (Chief of the Air Division National Guard Bureau) (1948-1950) In June 1953 it was reported that Gen. Mark W. Clark would retire and be replaced by Maj. Gen George G. Finch on the UN command delegation to the Korean armistice talks George G. Finch, born April 11, 1902 in Dade City, Florida, is considered one of the pioneers in United States aviation history.
 He began his military career during World War 1, enlisting in the Aviation Section of the Army's Signal Corps in 1918.
 He remained in the Reserve Corps after the war, and in 1926, became Commander, 27th Pursuit Squadron, 1st Pursuit Group.
 In 1940, Georgia Governor Ed Rivers commissioned him to form the first flying unit of the Georgia Air National Guard.
 The unit was mobilized into the U.S. Army in September, 1941, with Major Finch as commander.
 After World War II, he was a leading critic of efforts to eliminate the air arm of the National Guard during peacetime.
 General Finch gained the respect and admiration of Air National Guardsmen throughout the nation with his steadfast support and successful efforts to preserve the Air Guard.
 He became the first Chief of the Air Force Division of the National Guard Bureau in 1948.
 Under his leadership, the Air National Guard built to combat readiness and was among the first components called into service after the outbreak of the Korean War.
 As a result of General Finch's vision and perseverance, 45,000 highly trained officers and airmen of 22 wings and 65 squadrons gave the Air Force the strength it needed in the early, critical phases of the Communist drive down the Korean peninsula.General Finch served as the senior Air Force member of the United Nations negotiating team at the peace talks at Panmunjom, Korea, and received the Legion of Merit for outstanding service in 1955; General Finch assumed command of Fourteenth Air Force, Robins AFB, Georgia, becoming the nation's first Air National Guardsman to head a numbered air force.
 General Finch had a career of "firsts" including the US Army's first night landing with a single, five-million-candlepower floodlight in 1927.
 He also established and endowed the General John P. McConnell Award at the United States Air Force Academy.
 Considered by many as the father of the strong, independent Air National Guard existing today, General Finch retired in 1957.
 No man has had greater impact on the Air Force Reserve and National Guard than has General George G. Finch.A graduate of the University of Georgia and a member of the Georgia Bar, General Finch was enshrined in the Georgia Aviation Hall of Fame May 18, 1996.

Question: When was the building that was built for the Minnesota National Guard in 1935–36 demolished?
Answer: 1989