SEC teams did not play a uniform number of conference games until 1974. Prior to that, the number of conference games teams played ranged from four to eight, but most played a 6- or 7-game schedule. The league adopted a uniform 6-game schedule from 1974 to 1987, and added a seventh conference game from 1988 to 1991. Through this period and through the earlier years each SEC school had five permanent opponents, developing some traditional rivalries between schools, and the other games rotated around the other members of the conference.