Question: When did the team that has Stomper the Maverick as a mascot begin competition?

Context paragraphs:
Albany-Colonie Diamond Dogs: The Albany-Colonie Diamond Dogs were an independent baseball league team based in Albany, New York from 1995 to 2002.  The team played at Heritage Park in Colonie.  The Diamond Dogs competed in the Northeast League from 1995–98 and then in the Northern League when the two leagues merged prior to the 1999 season.  The Diamond Dogs won the Northern League Championship in 1999.  Their mascot was "Homer the Heritage Hound", a dog named for Heritage Park.  Due to financial woes and competition from the new Tri-City ValleyCats, the Diamond Dogs folded after the 2002 season.

2009 IRB Pacific Nations Cup: The 2009 Pacific Nations Cup is a rugby union tournament held between five national sides on the Pacific Rim: Fiji, Japan, Samoa, Tonga and the Junior All Blacks.  The New Zealand Māori team that won the tournament last year will no longer take part in this competition because of a decision taken by the New Zealand Rugby Union.  Australia A has also decided to pull out due to a similar decision.  The inaugural competition was held in 2006.  This year the tournament will begin on June 12 and ends on July 3, 2009 and most of the matches will be hosted by Fiji.  The awarding of the key international tournament to the Fiji Rugby Union represents a further boost to the continued development of rugby in the region.  The two opening round matches will be played outside of Fiji with Samoa hosting the Junior All Blacks in Apia and Tonga entertaining the Fijians in Nukuʻalofa the following day before the tournament moves to Fiji for a 17-day festival of international rugby spread across three match venues: the ANZ National Stadium (Suva), Churchill Park (Lautoka) and Lawaqa Park (Sigatoka).

Boston University Terriers: The Boston University Terriers are the ten men's and fourteen women's varsity athletic teams representing Boston University in NCAA Division I competition.  Boston University's team nickname is the Terriers, and the official mascot is Rhett the Boston Terrier.  The school colors are Scarlet and White.  The mascot is named Rhett after Rhett Butler from "Gone With the Wind", because "no one loves Scarlet more than Rhett."

Minnesota State Mavericks: The athletic teams of Minnesota State University, Mankato are known as the Minnesota State Mavericks.  More than 600 students participate each year in athletics for the university.  Most of the university's athletic teams compete at the NCAA Division II level in the Northern Sun Intercollegiate Conference (NSIC).  The men's and women's ice hockey teams compete at the Division I level in the Western Collegiate Hockey Association (WCHA).  Minnesota State began competition in the NSIC in 2008-09, due to the dissolution of the North Central Conference.

List of House episodes: "House", also known as "House, M.D.", is an American medical drama series which premiered on Fox on November 16, 2004.  "House" was created by David Shore.  The show follows Dr. Gregory House (Hugh Laurie), an irascible, maverick medical genius who heads a team of diagnosticians at the fictional Princeton-Plainsboro Teaching Hospital (PPTH) in New Jersey.  In a typical episode, the team is presented with an unusual case; the storyline follows the diagnosis of the patient's illness, a process often complicated by the internal competition and personal foibles of the diagnostic team.  The team leader, House, frequently clashes with his boss (Dr. Lisa Cuddy (Lisa Edelstein) in seasons 1 through 7, and Dr. Eric Foreman in season 8), and his only friend, Dr. James Wilson (Robert Sean Leonard).

2013 Copa Centroamericana squads: The 2013 Copa Centroamericana will be the 2nd edition of the Copa Centroamericana competition and 12th UNCAF-.  Costa Rica will be the host nation.  The competition is scheduled to begin on January 18, 2013 and the final will take place on January 27, 2013.  Every national team's roster consists of 21 players with three goalkeepers included

Stomper the Maverick: Stomper the Maverick is the mascot for the Minnesota State Mavericks athletics teams of the Minnesota State University, Mankato and the associated club teams and charities.  During the year, Stomper makes over 250 appearances and is at virtually all home games for University teams as well as regional and charity fund raisers.

Archbishop Spalding High School: Archbishop Spalding High School is a private, Catholic co-educational high school located in Severn, Maryland, USA.  It is located in the Roman Catholic Archdiocese of Baltimore.  Most of its students live in Annapolis, Crownsville, Arnold, Pasadena, Severna Park, Crofton, Millersville, Glen Burnie, or Davidsonville in Anne Arundel County.  Some also travel from southern Baltimore County, east Prince George's County and parts of Howard County.  Spalding has numerous clubs for student involvement and/or academic competition, including Academic Bowl, Mock Trial, Strategic Gaming, HOPE (Help Our Planet Earth) and a NAIMUN award-winning Model United Nations team.  It also has many competitive sports teams, such as soccer, basketball, softball, American football, baseball, lacrosse and cross country.  These athletic teams compete in the MIAA and the IAAM Conferences.  The baseball team was ranked as #21 in the United States in 2007, according to "USA Today".  The school sponsors a highly competitive music program, in which students participate in interstate competitions each year.  Archbishop Spalding's mascot is the Cavalier.

2010 O'Byrne Cup: The 2010 O'Byrne Cup was a Gaelic football competition played by the teams of Leinster GAA.  The competition differs from the Leinster Senior Football Championship as it also features further education colleges and the winning team does not progress to another tournament at All-Ireland level.  Last year's winners of the O'Byrne Cup were Louth.  The O'Byrne Cup was due to begin on 6 January 2010; however, due to Arctic conditions in the Leinster region of Ireland, the Leinster council decided to postpone all games until 16 January.

Natalie Golda: Natalie Golda (now Benson, born December 28, 1981) is a former American water polo player and currently the head coach of the newly formed Fresno State Bulldogs water polo team to begin competition in 2018.  Considered one of the greatest women's water polo players of all time, her senior leadership helped guide the 2005 UCLA Bruins to their seventh national championship.  In May 2005 Golda received the Peter J. Cutino Award, given to the best player in women's collegiate water polo.  She was also a member of the US Water Polo Team that won the bronze medal at the 2004 Athens Olympics and the silver medal at the 2008 Beijing Olympics.  She was elected to the USA Water Polo Hall of Fame in 2015.

Supporting paragraphs: Stomper the Maverick Minnesota State Mavericks
Answer: 2008-09