The NFL is the older league, formed in 1920.
There have been several AFLs, the first of which was formed in 1926, the last of which was formed in 1960, and eventually merged with the NFL in 1970.
The AFL and NFL merged before the start of the 1970 season.
The alternate name for the first Super Bowl was The First World Championship Game, AFL vs NFL.
The Dolphins joined the NFL when the AFL-NFL merger took place prior to the 1970 season. The Dolphins first season in the AFL was 1966 and were a member of the AFL East Division from 1966-1969.
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the Raiders joined the AFL in 1960
The AFL and the NFL
Green Bay Packers
The first ever game of 'Australian Rules' football was between Melbourne Grammar School and Scotch College in 1858.
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The NFL began in 1920 and the AFL began in 1960. The two leagues merged in 1970.
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OJ Simpson was drafted with the First selection in the 1969 common AFL/NFL Draft by the Buffalo Bills.