Question: When was the conference the The 1998 West Virginia Mountaineers football team was part of  created?

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The 1922 West Virginia Mountaineers football team represented the West Virginia Mountaineers during the 1922 college football season, and completed the regular season with a 9–0–1 record.  They earned the school's first bowl bid, journeying to the East-West Bowl where they defeated the Gonzaga Bulldogs 21–13.  This gave the Mountaineers their first 10 win season. The West Virginia Mountaineers football team represents West Virginia University (also referred to as "WVU" or "West Virginia") in the NCAA Football Bowl Subdivision (FBS) of college football.  Dana Holgorsen is WVU's current head coach, the 33rd in the program's history.  West Virginia plays its home games on Mountaineer Field at Milan Puskar Stadium on the campus of West Virginia University in Morgantown, West Virginia.  The Mountaineers compete in the Big 12 Conference. The 1919 West Virginia Mountaineers football team represented the West Virginia Mountaineers during the 1919 college football season.  The Mountaineers completed the regular season with a 8–2 record. The Big East Conference was a collegiate athletics conference that consisted of as many as 16 universities in the eastern half of the United States from 1979 to 2013.  The conference's members participated in 24 NCAA sports.  Three members had football programs but were not Big East football schools: Notre Dame football was independent while Georgetown and Villanova competed in the Football Championship Subdivision.  Another five schools—DePaul, Marquette, Seton Hall, St. John's, and Providence—discontinued or did not have football programs. The 2001 West Virginia Mountaineers football team represented West Virginia University in the 2001 NCAA Division I-A football season.  Under new head coach Rich Rodriguez the Mountaineers football suffered their worst season since 1978, finishing with a mark of 3–8.  The season's lowest point was a home loss to Temple, the school's first loss to the Owls since 1984 and first home loss to the school since 1979. The 2016 West Virginia Mountaineers football team represented West Virginia University in the 2016 NCAA Division I FBS football season.  The Mountaineers played as members of the Big 12 Conference (Big 12) and were led by head coach Dana Holgorsen, in his sixth year.  West Virginia played its home games at Mountaineer Field at Milan Puskar Stadium in Morgantown, West Virginia.  2016 was the 125th season of West Virginia football.  They finished the season 10–3, 7–2 in Big 12 play to finished in a tie for second place.  They received an invitation to the Russell Athletic Bowl where they lost Miami. Steve Dunlap (born February 4, 1954) was the assistant head coach and Special Teams Coordinator for the West Virginia Mountaineers football team.  Dunlap had been with the Mountaineers on and off throughout his 33-year coaching career on the defensive side of the football.  Dunlap has served on the staff of 16 bowl teams and coached in the 1988 National Championship Game.  His 1996 West Virginia Mountaineers football team defense was ranked #1 in the nation. The 1891 West Virginia Mountaineers football team represented West Virginia University in the 1891 college football season.  Led by Frederick Lincoln Emory in his first and only year as the Mountaineers' head coach, this was the first West Virginia Mountaineers football team.  They lost the only game they played Washington & Jefferson, 72–0, at the Show Lot in Morgantown, West Virginia. The 2012 West Virginia Mountaineers football team represented West Virginia University in the 2012 NCAA Division I FBS football season.  The season marked the Mountaineers' first season as members of the Big 12 Conference.  In addition, the 2012 season was the first for the team since 1942 without a Backyard Brawl matchup against their top rival Pittsburgh due to their exit from the Big East Conference after the 2011 season.  The Mountaineers were led by Dana Holgorsen in his second season as head coach.  Joe DeForest and Keith Patterson served as co-defensive coordinators in their first season at WVU, while Shannon Dawson was elevated to offensive coordinator after serving as the team's receivers coach in the 2011 season.  West Virginia played its home games on Mountaineer Field at Milan Puskar Stadium in Morgantown, West Virginia.  They finished the season 7–6, 4–5 in Big 12 play to finish in a four way tie for fifth place.  They were invited to the Pinstripe Bowl where they were defeated by longtime rival Syracuse. The 1998 West Virginia Mountaineers football team represented West Virginia University in the 1998 NCAA Division I-A football season.  It was the Mountaineers' 106th overall and 8th season as a member of the Big East Conference (Big East).  The team was led by head coach Don Nehlen, in his 19th year, and played their home games at Mountaineer Field in Morgantown, West Virginia.  They finished the season with a record of eight wins and four losses (8–4 overall, 5–2 in the Big East) and with a loss against Missouri in the Insight.com Bowl.

Supporting sentences:
 It was the Mountaineers' 106th overall and 8th season as a member of the Big East Conference (Big East). The Big East Conference was a collegiate athletics conference that consisted of as many as 16 universities in the eastern half of the United States from 1979 to 2013.