Question: How many schools are in the league that the Penn Quakers compete in?

Context articles: 2004–05 Ivy League men's basketball season
2005–06 Ivy League men's basketball season
2009 Penn Quakers football team
Penn–Princeton basketball rivalry
1909 Penn Quakers football team
Ivy League
1890 Penn Quakers football team
1876 Penn Quakers football team
Penn Quakers football
1892 Penn Quakers football team

The 2004–05 Ivy League men's basketball season was the Ivy League's 51st season of basketball.
 The team with the best record (Penn Quakers) progressed to play in the 2005 NCAA Men's Division I Basketball Tournament.
 It would be their 23rd NCAA tournament appearance.
 Tim Begley, a senior shooting guard, won the Ivy League Men's Basketball Player of the Year.
 He was the eleventh player from the Penn Quakers to win the award.
The 2005–06 Ivy League men's basketball season was the Ivy League's 52nd season of basketball.
 The team with the best record (Penn Quakers) progressed to play in the 2006 NCAA Men's Division I Basketball Tournament.
 Ibrahim Jaaber, who played point guard for the Penn Quakers, won the Ivy League Men's Basketball Player of the Year.
 He averaged 18.2 points, 3.4 rebounds, 3.3 steals, and 2.2 assists.
The 2009 Penn Quakers football team represented the University of Pennsylvania in the 2009 NCAA Division I FCS football season.
 It was the 133rd season of play for the Quakers.
 The team was led by Al Bagnoli, in his 18th season as head coach.
 The Quakers played their home games at Franklin Field in Philadelphia.
 The season was highlighted by an eight-game winning streak to close the season as Penn captured its 14th Ivy League title by going undefeated in conference play.
The Penn–Princeton basketball rivalry is an American college basketball rivalry between the Penn Quakers men's basketball team of the University of Pennsylvania and Princeton Tigers men's basketball team of Princeton University.
 Having been contested every year since 1903, it is the third oldest consecutively played rivalry in National Collegiate Athletic Association Division I history.
 Unlike many notable college basketball rivalries, such as Carolina–Duke, which involves teams that often both get invited to the same NCAA tournaments, Notre Dame–UCLA, which involves geographically remote teams, Illinois–Missouri, which involves non-conference rivals, or Alabama–Auburn, which takes a back seat to the football rivalry, this is a rivalry of geographically close, conference rivals, who compete for a single NCAA invitation and consider the basketball rivalry more important than other sports rivalries between the schools.
 A head-to-head contest has been the final regularly scheduled game of the Princeton season every year since 1995.
 Between 1963 and 2007, Princeton or Penn won or shared the Ivy League conference championship every season except 1986 and 1988.
 The other seasons in which neither team won or shared the Ivy League title are 1957, 1958, 1962, 2008–10, and 2012-2016.
The 1909 Penn Quakers football team represented the University of Pennsylvania in the 1909 college football season.
 The Quakers finished with a 7–1–2 record in their first year under head coach and College Football Hall of Fame inductee, Andy Smith.
 Their only loss was to Michigan by a 12 to 6 score, a game that snapped Penn's 23-game winning streak and marked the first time a Western team had defeated one of the "Big Four" (Harvard, Yale, Princeton and Penn).
 Other significant games included a 12 to 0 victory over West Virginia, a 3-3 tie with Penn State, a 29 to 6 victory over Carlisle, and a 17 to 6 victory over Cornell.
 They outscored their opponents by a combined total of 146 to 38.
 End Harry Braddock was the only Penn player to receive All-America honors in 1909, receiving second-team honors from Walter Camp.
The Ivy League is a collegiate athletic conference comprising sports teams from eight private institutions of higher education in the Northeastern United States.
 The conference name is also commonly used to refer to those eight schools as a group beyond the sports context.
 The eight institutions are Brown University, Columbia University, Cornell University, Dartmouth College, Harvard University, the University of Pennsylvania, Princeton University, and Yale University.
 The term "Ivy League" has connotations of academic excellence, selectivity in admissions, and social elitism.
The 1890 Penn Quakers football team represented the University of Pennsylvania in the 1890 college football season.
 The Quakers finished with an 11–3 record in their third year under head coach E. O. Wagenhorst.
 Significant games included victories over Rutgers (16–4 and 20–12), Penn State (20–0), and Lehigh (8–0 and 17–14), and losses to Princeton (0–6) and Yale (0–60).
 The 1890 Penn team outscored its opponents by a combined total of 259 to 134.
 No Penn players were honored on the 1890 College Football All-America Team.
The 1876 Penn Quakers football team represented the University of Pennsylvania in the 1876 college football season.
 They finished with a 1–2 record.
 This was the first season for the Penn Quakers football team.
The Penn Quakers football team is the college football team at the University of Pennsylvania in Philadelphia, Pennsylvania.
 The Penn Quakers have competed in the Ivy League since its inaugural season of 1956, and are currently a Division I Football Championship Subdivision (FCS) member of the National Collegiate Athletic Association (NCAA).
 Penn has played in 1,364 football games, the most of any school in any division.
 Penn plays its home games at historic Franklin Field, the oldest football stadium in the US.
 All Penn games are broadcast on WNTP or WFIL radio.
The 1892 Penn Quakers football team represented the University of Pennsylvania in the 1892 college football season.
 The Quakers finished with a 15–1 record in their first year under head coach and College Football Hall of Fame inductee, George Washington Woodruff.
 Significant games included victories over Penn State (20–0), Navy (16–0), Lafayette (8–6 and 10–4), and Princeton (6–4), and its sole loss to undefeated national champion Yale (0–28).
 The 1892 Penn team outscored its opponents by a combined total of 405 to 52.
 Penn halfback Harry Thayer was selected by both Walter Camp and Caspar Whitney as a first-team player on the 1892 College Football All-America Team.