Question: Adelaide Adrenaline is a team that plays its home games at the arena that opened on what date?
Context: The 2008–09 Canadian Major Indoor Soccer League (CMISL) season sees a different format than previous seasons.  As the league has become affiliated with the Professional Arena Soccer League (PASL) in the United States, the Edmonton Drillers and Saskatoon Accelerators will play four soccer games and the Calgary United FC will play eight games against the PASL teams.  Edmonton and Saskatoon will play two home games and two road games and Calgary will play four home games and four road games against PASL teams.  In the CMISL portion of the schedule each team will play eight games.  This will see Edmonton play six home games and two road games, Saskatoon play two home games and six road games and Calgary play six home games and two road games.  As a result of the imbalanced schedule, the CMISL announced that all Calgary United FC games against PASL opponents will only be worth one point in the standings.  The remainder of Calgary's schedule, as well as the entire Edmonton and Saskatoon schedules are worth two points in the standings. IceArenA, located in Thebarton, Adelaide, South Australia first opened on 17 September 1981 as the Ice Arena.  In late 1986, the centre closed for the construction of the world's first indoor ski slope and reopened in 1987 as Mt Thebarton Snow and Ice, featuring what was reported to be the world's first indoor ski slope on artificial snow.  The centre underwent a further name change to Snowdome Adelaide.  Most recently, following the closure of the Ski Slope in 2005, a final name change to IceArenA was made.  The IceArenA is South Australia’s premier ice skating facility located just minutes from the Adelaide CBD. The Arizona Adrenaline were a professional indoor American football team based in Prescott Valley, Arizona.  They were members of the Mountain West division of the Intense Conference of the Indoor Football League (IFL).  The Adrenaline were founded in 2008 as an expansion member of the American Indoor Football Association (AIFA).  After two years of dormancy, the Adrenaline returned for 2011 in the IFL.  The team played its home games at the Tim's Toyota Center. This is a list of seasons completed by the Philadelphia Soul.  The Soul are a professional arena football franchise of the Arena Football League (AFL), based in Philadelphia, Pennsylvania.  The team was established in 2004.  The Soul have appeared in four ArenaBowls, the first coming in the 2008 season, where they finished with the best record in the league, and put together a playoff run that ended with a win in ArenaBowl XXII.  The team made back to back appearances in ArenaBowl XXV and ArenaBowl XXVI, however lost both games.  The Soul won their fourth appearance in ArenaBowl XXIX.  Prior to the 2009 season, the AFL announced that it had suspended operations indefinitely and canceled the 2009 season.  The league returned in 2010, however the Soul did not return until .  The team plays all of its home games at Wells Fargo Center.  Until its closing in 2009, the team played Saturday home games at Wachovia Spectrum. The Adelaide Adrenaline are a semi-professional ice hockey team based Adelaide, South Australia.  They are members of the Australian Ice Hockey League (AIHL).  The team plays its home games at the Ice Arena, located in the suburb of Thebarton.  The team were founded in 2008 as the Adelaide A's to replace the Adelaide Avalanche who had folded mid-season.  They changed their to the Adrenaline the following season.  The Adrenaline's best result in the regular season was in the 2012 season where they finished second in their conference and second overall.  The team have qualified for the playoffs on four occasions, winning the Goodall Cup in 2009 and finishing runners-up in 2010. Viejas Arena at Aztec Bowl (formerly named Cox Arena), located on the San Diego State University (SDSU) campus in San Diego, California, is the home of the San Diego State Aztecs men's basketball and women's basketball teams.  Viejas Arena opened its doors to the campus and community in July 1997 and seats 12,414 for basketball and up to 12,845 for concerts.  The facility also hosts SDSU's commencement ceremonies.  Previously, the Aztecs played at Peterson Gymnasium also on the SDSU campus.  However, the men's basketball team played most of their home games at the San Diego Sports Arena prior to Viejas Arena's construction. The Smoothie King Center is a multi-purpose indoor arena in New Orleans, Louisiana.  It is located in the city's Central Business District, adjacent to the Mercedes-Benz Superdome.  The arena opened in 1999 as New Orleans Arena and has been home to the New Orleans Pelicans of the National Basketball Association (NBA) since 2002.  The New Orleans VooDoo of the Arena Football League played their home games in the arena from 2004 until the team disbanded in 2008.  The VooDoo resumed play at the arena in March 2011, until after the 2015 AFL season when the franchise folded. The 2011 Arizona Adrenaline season was the team's second season as a football franchise and first in the current Indoor Football League (IFL).  One of twenty-two teams competing in the IFL for the 2011 season, the Arizona Adrenaline were members of the Intense Conference.  Led by head coach Andrew Moore, the team played their home games at the Tim's Toyota Center in Prescott Valley, Arizona. The Cedar Rapids Ice Arena is a 3,850-seat multipurpose arena in Cedar Rapids, Iowa, located adjacent to Veterans Memorial Stadium.  The arena opened on January 8, 2000, and is owned by the city of Cedar Rapids.  It is home to the Cedar Rapids RoughRiders of the United States Hockey League as well as several local youth hockey teams.  The University of Iowa Hawkeyes club hockey team plays some of their home games at the facility.  The arena contains separate sheets of ice for ice hockey games and for public and figure ice skating. The Lehigh Valley Steelhawks are a professional indoor football team based in Allentown, Pennsylvania and are members of the National Arena League (NAL).  The Steelhawks began play as an expansion team in the Indoor Football League (IFL) in 2011.  The Steelhawks moved to the Professional Indoor Football League (PIFL) in 2013, where they made their only championship game appearance to date, losing PIFL Cup III to the Nashville Venom.  The team joined American Indoor Football for the 2016 season after the PIFL folded.  The Steelhawks are the Lehigh Valley's second indoor football team, following the defunct Lehigh Valley Outlawz of the Continental Indoor Football League (2005–2008).  Both teams played their home games at Stabler Arena.  The owner of the Steelhawks is Glenn Clark.  The Steelhawks play their home games at the PPL Center.
Answer: 17 September 1981