Think you know everything about football? The first NFL game took place in 1920. Since then, fans have seen amazing stars such as Tom Brady, Justin Tusker, and more rise in the sport. Discover fun facts about football from its incredible athletes to the best games in history. Exploring the world is fun in the Unbelievable! series-part of the UpDog Book⢠collection. Learn entertaining facts about sports, nature, space, and much more. Then use what you learned to impress your friends and family!
