has been an associate member for women's wrestling since 2019. Past members of the SAC include: Oklahoma Baptist, Oklahoma Christian, Southern Nazarene, Rogers State, Lubbock Christian, Northwestern Oklahoma State, Northwood, St. Gregory's and Bacone. The league also includes associate members on a per-sport basis. Arizona Christian University, Lyon (Ark.) College, Ottawa University-Arizona and Texas College became SAC members for football in 2018-19 with Louisiana College joining for 2021–22. Chronological timeline 1978 - The Sooner Athletic Conference (SAC) was founded. Charter members included Bethany Nazarene College (now Southern Nazarene University), Oklahoma Baptist University, Oklahoma Christian University, Phillips University and the University of Science and Arts of Oklahoma (USAO) beginning the 1978-79 academic year. 1980 - John Brown University joined the Sooner in the 1980-81 academic year. 1983 - John Brown left the Sooner to become an NAIA Independent after the 1982-83 academic year. 1986 - Oklahoma City University joined the Sooner in the 1986-87 academic year. 1994 - USAO left the Sooner to join the Oklahoma Intercollegiate Conference (OIC) after the 1993-94 academic year. 1994 - Lubbock Christian University and Wayland Baptist University joined the Sooner in the 1994-95 academic year. 1995 - John Brown re-joined Sooner in the 1995-96 academic year. 1998 - Phillips left the Sooner as the school announced that it would close after the 1997-98 academic year. 1999 - St. Gregory's University joined the Sooner in the 1999-2000 academic year. 2000 - USAO re-joined Sooner in the 2000-01 academic year. 2002 - Northwestern Oklahoma State University joined the Sooner in the 2002-03 academic year. 2007 - Mid-America Christian University and Rogers State University joined the Sooner in the 2007-08 academic year. 2012 - Three institutions left the Sooner and the NAIA to join the Division II ranks of the National Collegiate Athletic Association (NCAA) and to join their respective new home primary conferences: Northwestern Oklahoma State and Southern Nazarene to the Great American Conference (GAC), and Oklahoma Christian to the Heartland Conference after the 2011-12 academic year. 2013 - Lubbock Christian and Rogers State left the Sooner and joined the NCAA Division II ranks and the Heartland after the 2012-13 academic year. 2013 - Northwood University–Texas, Southwestern Assemblies of God University, Southwestern Christian University and Texas Wesleyan University joined the Sooner in the 2013-14 academic year. 2014 - Northwood–Texas left the Sooner as the school announced that it would close after the 2013-14 academic year. 2015 -