yes green bay vs Chicago last year
THE DALLAS COWBOYS
No. Both teams are in the same conference. They have played three times in conference playoff games.
No. All final four teams have been from different conferences, but not all 4.
Liverpool are the first team ever to get cheerleaders In American football, it was the Baltimore Colts.
No, Peyton manning is on an American football conference team and Eli is on a national football conference team they can only meet in the Super Bowl and they haven't done that.
yes
no
Carolina Panthers, Washington Redskins, and Jacksonville Jaguars
No, however, all branches of the USAF that have college football teams have contributed to the Marine Corps. service personnel.
Not professionally. There were two professional leagues in 1947, the National Football League and the All American Football Conference. Neither league had a team in St. Louis in 1947.
No, as it is not possible for teams of the same conference (and currently of the same division) to ever meet in the finals round.