When did the conference the members of the Fresno State–San Diego State rivalry are both part of begin operations?
Mountain West Conference The Mountain West Conference (MW) is one of the collegiate athletic conferences affiliated with the National Collegiate Athletic Association (NCAA) Division I Football Bowl Subdivision (FBS) (formerly I-A). The MW officially began operations in July 1999. Geographically, the MW covers a broad expanse of the Western United States, with member schools located in California, Colorado, Hawaii, Idaho, Nevada, New Mexico, Utah, and Wyoming. Craig Thompson has served as Commissioner of the MW since its founding in 1999.
Atlantic Women's Colleges Conference The Atlantic Women's Colleges Conference was an eight-member college athletics conference founded in 1995 and given official status in 1999. It competed in NCAA Division III and as its name implies, only offered championships in women's sports. In the conference's later years, several of its members finally became co-educational. Following the 2006-2007 season these members, seeking homes for their newly created men's athletic programs departed for other conferences. Other members also switched affiliations, leaving the conference without enough members to be officially sanctioned. Following the 2007 spring season, the conference ceased operations.