The 2015 Wisconsin Badgers football team represented the University of Wisconsin–Madison in the 2015 NCAA Division I FBS football season.
 The Badgers, led by first-year head coach Paul Chryst, were members of the West Division of the Big Ten Conference and played their home games at Camp Randall Stadium.
 On January 13, 2015, the Badgers hired offensive coordinator Joe Rudolph.
 The Badgers were the media preseason favorites to win the Big Ten West division.
 During fall camp prior to the start of the season Chryst announced the Badgers would return to a pro-style punt scheme instead of the shield punt scheme, also known as the spread punt scheme.
 Two days after Wisconsin played in the Holiday Bowl defensive coordinator Dave Aranda was hired by LSU as their new defensive coordinator.
 At the end of the season, Wisconsin featured the #1 defense in college football, with opponents averaging just 13.1 points per game against the Badgers.
The 1925 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1925 Big Ten Conference football season.
 The team compiled a 6–1–1 record (3–1–1 against conference opponents), finished in third place in the Big Ten Conference, and outscored all opponents by a combined total of 131 to 50.
 George Little was in his first year as Wisconsin's head coach.
 Little had been the head coach at Michigan in 1924; the Badgers suffered their only defeat of the 1925 season to Little's former team.
The 1890 Wisconsin Badgers football team represented the University of Wisconsin in the 1890 college football season.
 This season marked the largest margin of victory in Wisconsin Badgers football history, a 106–0 win to open the season against <a href="">Whitewater Normal
The 1926 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1926 Big Ten Conference football season.
 The team compiled a 5–2–1 record (3–2–1 against conference opponents), finished in fifth place in the Big Ten Conference, and outscored all opponents by a combined total of 122 to 72.
 George Little was in his second and final year as Wisconsin's head coach.
The Big Ten Conference (B1G), formerly Western Conference and Big Nine Conference, is the oldest Division I collegiate athletic conference in the United States.
 Despite its name, the conference consists of 14 members (as of 2016).
 They compete in the NCAA Division I; its football teams compete in the Football Bowl Subdivision (FBS), formerly known as Division I-A, the highest level of NCAA competition in that sport.
 The conference includes the flagship public university in each of 11 states stretching from New Jersey to Nebraska, as well as two additional public land grant schools and a private university.
The 1889 Wisconsin Badgers football team represented the University of Wisconsin in the 1889 college football season.
 1889 was the first season of Wisconsin Badgers football.
The 1934 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1934 Big Ten Conference football season.
 The team compiled a 4–4 record (2–3 against conference opponents) and finished in a tie for fifth place in the Big Ten Conference.
 Clarence Spears was in his third year as Wisconsin's head coach.
The 1938 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1938 Big Ten Conference football season.
 The team compiled a 5–3 record (3–2 against conference opponents) and finished in fifth place in the Big Ten Conference.
 Harry Stuhldreher was in his third year as Wisconsin's head coach.
The 1944 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1944 Big Ten Conference football season.
 The team compiled a 3–6 record (2–4 against conference opponents) and finished in seventh place in the Big Ten Conference.
 Harry Stuhldreher was in his ninth year as Wisconsin's head coach.
 This was the first season since 1905 that the Badgers started the season away from home.
The 1941 Wisconsin Badgers football team was an American football team that represented the University of Wisconsin in the 1941 Big Ten Conference football season.
 The team compiled a 3–5 record (3–3 against conference opponents) and finished in fifth place in the Big Ten Conference.
 Harry Stuhldreher was in his sixth year as Wisconsin's head coach.

Question: What is the oldest Division I collegiate athletic conference at which the 1941 Wisconsin Badgers football team finished in fifth place?
Answer: the Big Ten Conference