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In page BMX:
"In 1974, George E. Esser founded the National Bicycle League as a non-profit bicycle motocross sanctioning organization. Before they set up the NBL, Esser and his wife, Mary, sanctioned motorcycle races with the American Motocross Association (AMA). Their two sons, Greg and Brian, raced motorcycles, but also enjoyed riding and racing BMX with their friends. It was their sons' interest, and the lack of BMX organizations in the East, which prompted Esser to start the NBL in Florida.[citation needed]
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