The conference origins are twofold, the first iteration dates back to 1970 where the charter members included Casey, Marshall, Martinsville, Oblong, Palestine and Toledo-Cumberland.
In 1972, St. Elmo joined the league and it maintained as a seven team conference until 1981, when Palestine left.
The second incarnation of the league included Albion-Edwards County, Casey-Westfield, Marshall, Martinsville, Oblong and Toledo-Cumberland.
[2] The conference has been strong in volleyball with Cumberland reaching the Class 1A final four three straight times from 2008 to 2010.
This followed the addition of Newton, Olney and Robinson high schools, which had been longtime members of the Apollo Conference.