Chiefs Trying to Become Second Team to Win Three NFL Championships in a Row

Yes, I know no team has won three Super Bowls in a row, but if the NFL actually cared about its history before 1962, it would acknowledge that one team has already one three NFL Championships in a row and in fact has done it twice: the Packers won NFL Championships in 1929, 1930, and 1931 and 1961, 1962 (Super Bowl I), and 1962 (Super Bowl II).