09-06-2007, 06:43 AM #1
Like weeds, NFL's challengers rise, flourish and fade
[size=13pt]Like weeds, NFL's challengers rise, flourish and fade[/size]
But some leave lasting marks
By Barry Osborne and Mike Judson
Denver Post Staff Writers
Article Last Updated: 09/05/2007 06:20:50 PM MDT
Since its formation in 1920, the National Football League (known as the American Professional Football Association in 1920 and 1921) has had several start-up leagues challenge its supremacy as the sport's premier league. Here are a few of the contenders and pretenders that were wiped out or absorbed by the NFL...
"If at first you don't succeed, parachuting is not for you"
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