In the 2005 college football season, the ACC joined the ranks of three other conferences at that time – the SEC, Big 12 and Mid-American – as teams having multiple divisions and a championship game in what is now the FBS level. Thanks to defections from the original incarnation of the Big East Conference, the ACC had 12 teams that season and played their inaugural title game, won by FSU football over Virginia Tech.
Fast forward a dozen years later, and the number of teams in the ACC has jumped to 14 – thanks to the addition of three more former Big East members and the defection of charter member Maryland to the Big Ten for the all mighty pay day.