The team with the most NFL championships are the Pittsburgh Steelers with 6. The second most championships won is 5, accomplished by both San Francisco 49ers and Dallas Cowboys. A total of 19 teams have won the Super Bowl in its history. 
The first Super Bowl took place on January 15, 1967. The Green Bay Packers beat the Kansas City Chiefs, with a final score of 35 to 17. The MVP was Bart Starr.