CubsBear had the right answer. The AFL & NFL merged into the NFL in 1970. 1971 was the first "SuperBowl", between NFL teams, Dallas and Baltimore. The GreenBay (NFL) / Kansas City (AFL) game was named the AFL-NFL World Championship Game. So, all you GreenBay and Kansas City fans, your team did not play in the first superbowl between two NFL teams.
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