Question: Patten gymnasium is in Evanstan, Illinois, United States on the campus of?
Context: The 1931 NCAA Swimming and Diving Championships were contested at Patten Gymnasium at Northwestern University in Evanston, Illinois as part of the eighth annual NCAA swim meet to determine the team and individual national champions of men's collegiate swimming and diving in the United States. Evanston ( ) is a city in Cook County, Illinois, United States, 12 mi north of downtown Chicago, bordered by Chicago to the south, Skokie to the west, and Wilmette to the north.  It had a population of 74,486 as of 2010 .  It is one of the North Shore communities that adjoin Lake Michigan and is the home of Northwestern University.  The boundaries of the city of Evanston are coterminous with those of the former Evanston Township, which was dissolved in 2014 by voters with its functions being absorbed by the city of Evanston. Wills Gymnasium, often referred to as Wills Gym, was a multi-purpose athletic facility on the campus of Kent State University in Kent, Ohio, United States.  Construction started in 1924 and the building was dedicated in 1925.  It was the first dedicated gymnasium on the KSU campus, which had opened in 1913.  Before the opening of Wills Gym, physical education classes and the intercollegiate and intramural sports teams used a variety of spaces for games and classes, both on campus in other buildings and off campus.  The main gym seated approximately 4,000 people and the basement level included an indoor pool, locker rooms, and bowling alley.  At the time, its capacity made it one of the largest facilities in the region.  The building served as the primary home of the university's athletic teams and physical education department until 1950, when the Men's Physical Education Building opened.  Wills Gym was the first permanent home of the Kent State Golden Flashes men's basketball team, and was also the original home venue for wrestling, men's swimming, men's and women's gymnastics, women's volleyball, and women's basketball. The 1925 NCAA Swimming and Diving Championships were contested at Patten Gymnasium at Northwestern University in Evanston, Illinois as part of the second annual NCAA swim meet to determine the team and individual national champions of men's collegiate swimming and diving in the United States. Ken Bahnsen Gym, formerly known as the Men's Gymnasium, is a 5,000 seat multi-purpose arena on the campus of the University of North Texas in Denton, Texas, United States.  The Men's Gymnasium was home court for the North Texas Mean Green men's basketball team since the arena opened in 1950 until moving to the UNT Coliseum in 1973. Patten Gymnasium is the name of two multi-purpose gymnasiums in Evanston, Illinois, United States, on the campus of Northwestern University.  The original building, designed by George Washington Maher, opened in 1910 and was home to the Northwestern Wildcats men's basketball team until 1940, when it was demolished to make room for the construction of the Technological Institute.  The current Patten Gymnasium opened in 1940 and hosted the men's basketball team for 12 years before Welsh-Ryan Arena opened in 1952.  The ivy-lined building has the doors and statues from the old gym.  It currently is the home to the women's fencing team intramural sports program and also has offices and locker rooms for the women's lacrosse, field hockey, and men's and women's soccer teams.  It is named for James A. Patten, former Evanston mayor, philanthropist, commodities broker and NU board of trustees president. Marshfield High School is a public high school in Coos Bay, Oregon, United States.  Coos Bay is located on the southern Oregon coast.  The campus consists of four major buildings, including an Intermediate building which opened in 2000 that serves as a math and science building.  It also has a gymnasium that seats 3,000.  There is also a separate facility that houses the Drama program.  Marshfield High School started in 1908 after being bought from the International Order of Odd Fellows, who owned the cemetery the school is built around.  Construction of the first building later known as the East Branch was finished a year after the purchase and was soon followed by a small gym with a pool in 1915.  By 1938, the small building was becoming crowded so the decision was made to make another building.  With the help of architect Francis Marion Stokes of Portland Oregon, the Main Building (1940) and the West Gym (1939) were added to the campus.  In 1952, another gym was installed in the center of campus claiming the name Main Gym.  The Main Building was extended onto the North side in 1953, and the West side in 1962.  The old East Branch was becoming out dated with the tall pillars and peaked roof compared to the Art Deco style of the rest of the campus, so it was remodeled in 1958.  Just before the turn of the century, the school decided to instal another building at the North side.  The old East Branch was becoming old, but the town wanted to keep it around for sentimental value, until the plaster ceiling came toppling down onto a desk.  Once Pirate Hall was completed in January 2000, the East Branch was relieved of duty, and soon became the parking lot for the students. United High School or UHS, is a public four-year high school located at 1905 100th Street near Monmouth, Illinois, a city of Warren County, Illinois, in the Midwestern United States.  UHS is part of United Community Unit School District 304, which also includes United Junior High School, United North Elementary School, and United West Elementary School.  Despite the Alexis United misnomer sometimes used to describe the high school, the campus is actually located 2 miles east of Monmouth, IL, though the district's north campus and one of the elementary schools is located in Alexis, Illinois.  The misnomer is due to the district office previouly being located in Alexis, Illinois.  It has since been moved to the high school campus.  The school serves a mixed city fringe, village, and rural residential community on the outskirts of the city of Monmouth, in the villages of Alexis, Kirkwood, Little York, North Henderson, and the unincorporated communities of Cameron and Gerlaw.  Much of the school district is within the Galesburg micropolitan statistical area.  United High School was formed by the consolidation of Alexis High School and Monmouth Warren High School in 2004.  In 2007 Monmouth Yorkwood High School deactivated and was annexed into United High School. Bartlett Gymnasium is a former athletic facility on the campus of the University of Chicago in Chicago, Illinois, United States, that has been converted into a campus dining hall. The Lindner Fitness Center is a multi-purpose arena located in Elgin, Illinois, United States on the campus of Judson University.  It is in the Eastern corner of the campus and faces the soccer field.  The Fitness Center has two basketball courts which double as volleyball courts.  A track runs around the edge of the gymnasium, raised above the floor.  It is home to the Judson University Eagles and formerly the home of the Elgin Racers of the International Basketball League.
Answer: Northwestern University