Short answers, pulled from the story.
The NFC North earned the nickname "Black and Blue Division" because of its intense rivalries and physical style of play between the four member teams. The nickname is still used regularly today and reflects the division's long history of hard-hitting games.
The NFC North has four members: the Chicago Bears, the Detroit Lions, the Green Bay Packers, and the Minnesota Vikings. The Lions, Packers, and Vikings are based within most definitions of the Upper Midwest.
NFC North teams have won five Super Bowls in total. The Green Bay Packers account for four of those titles, and the Chicago Bears have won one, with the most recent coming at the conclusion of the 2010 season. The Minnesota Vikings have appeared in four Super Bowls without winning, and the Detroit Lions have never appeared in one.
The division was created in 1967 as the Central Division of the NFL's Western Conference. It was renamed the NFC Central after the AFL-NFL merger in 1970, and adopted its current name, NFC North, in 2002 when the league realigned into eight four-team divisions.
The Green Bay Packers are the oldest team, founded in 1919. The Chicago Bears followed in 1920, the Detroit Lions in 1930, and the Minnesota Vikings joined last in 1961.
The Detroit Lions have never appeared in a Super Bowl. They hold four pre-Super Bowl era NFL league titles and completed the first winless 16-game regular season in NFL history in 2008, then finished 15-2 in the 2024 regular season - the best single-season record in franchise history.