Cleveland Browns: 5 times the Browns just missed the Super Bowl - Dawgs By Nature
History of the Patriots in AFC Championship games
Bengals-Chiefs live blog: Super Bowl-Bound Cincinnati outlasts Kansas City - Sports Illustrated
From AFL to AFC: playoff history of the Kansas City Chiefs, Buffalo Bills
Here's the NFC Championship Game history for Packers, Buccaneers
List of Washington Football Team Playoff Results Since 1937.
AFC Championship Game History: Most Wins, Losses and Appearances – NBC Connecticut
Bills vs. Chiefs: A playoff rivalry steeped in AFL and AFC Championship history - Buffalo Rumblings
AFC Championship Game Records: Full list of results, facts, and more
NFC Championship Game History: Most Wins, Losses and Appearances – NBC4 Washington
Chiefs Beat Bills in OT Thriller, Punch Ticket to Fourth Straight AFC Title Game – NBC4 Washington
AFC Championship Game History: Who's played in the most AFC title games?
What We Learned From the N.F.L.'s Conference Championships - The New York Times
AFC Championship Game Records: Full list of results, facts, and more
Washington Commanders - Wikipedia