[Kamikaze81]

The rivalries between the teams of the NFC North dates back when the division was known simply as the "Black and Blue" division which was formed in the 1960s(When the Vikings came to be). Bears hated packers, Vikings hated Lions, Packers hated vikings and so forth. The Bears and Packers were also ancient rivals from the "old nfl" back in the 20s.

On a different Note, I remember the infamous Red Wings/Avalanche fued. I always and forever hate those fuckin Aves. The Wings also are rivals to the Stars, Ducks, St. Louis(Another oldschool rival that came to blows), Blackhawks. At one point they were once rivals to the Toronto Maple Leafs during the "Original 6" era.

Man, I'll never forget the Bulls and the Pistons rivalry from the late 80s and early 90s. That was good times on TV. :D