February 1995: Westminster wins the men's basketball tournament title to earn the SLIAC's first automatic bid to an NCAA Division III national championship event.
March 1996: MacMurray wins the women's basketball tournament title to earn the conference's first automatic bid to an NCAA Division III women's national championship event.
November 1996: Blackburn, MacMurray, and Westminster share the first-ever SLIAC football title.
September 1999: The SLIAC begins its tenth year of operation.
November 1999: The fourth and final (until 2008) conference football title is awarded (six teams needed for conference to sponsor a sport).
May 2007: William Wolper hired as the Conference's first full-time Commissioner (officially started in July).
September 2008: Football begins play as the 13th conference sport after a nine-year hiatus.
April 2009: The SLIAC announced it would cease its sponsorship of football; five football-playing schools join theUpper Midwest Athletic Conference (UMAC) as associate members for the sport. Huntingdon and LaGrange end football affiliation with the conference.
On April 16, 2009, the SLIAC announced it would cease its sponsorship of football; five football-playing schools join theUpper Midwest Athletic Conference (UMAC) as associate members for the sport. Huntingdon and LaGrange ended their football affiliation with the conference.[1]
1996 – Parks left the SLIAC after the 1995–96 academic year; as it ceased operations and its academic programs were moved to theSaint Louis University campus.
2007 – Lincoln Christian left the SLIAC at the end of the fall 2007 semester, during the 2007–08 academic year.
2008 –Huntingdon College andLaGrange College joined the SLIAC as affiliate members for football in the 2008 fall season (2008–09 academic year); as the conference announced the return of football after a nine-year hiatus.
2009:
Huntingdon and LaGrange left the SLIAC as affiliate members for football after the 2008 fall season (2008–09 academic year).
2010 – TheUniversity of Dallas joined the SLIAC as an affiliate member for men's golf and men's and women's cross country in the 2010–11 academic year.
2011 – U. of Dallas left the SLIAC as an affiliate member for men's golf (after spending one season) to join as a full member of theSouthern Collegiate Athletic Conference (SCAC) after the 2010–11 academic year.
2013 –Iowa Wesleyan College (later Iowa Wesleyan University) joined the SLIAC in the 2013–14 academic year.
Fontbonne left the SLIAC after the 2024–25 academic year; as the school ceased operations.
McMurry University joined the SLIAC as an affiliate member for men's and women's wrestling (alongside Huntingdon returning for those sports) in the 2025–26 academic year.
^Parks College's academic programs were moved toSaint Louis University main campus in August 1996.
^Parks discontinued its athletics program after the 1995–96 school year, and ceased to be a separate college in 2022, although it continues as a department within Saint Louis University