The three most popular pro sports in the United States are baseball, football, and basketballDid you know that originally there were no innings in baseball? That the first helmet worn by pro-football players could be folded up and put in their back pockets? Or that the first basketball was a football?This book explains how such things were possible and how these sports slowly evolved into the games we know today.The three most popular pro sports in the United States are baseball, football, and basketballDid you know that originally there were no innings in baseball? That the first helmet worn by pro-football players could be folded up and put in their back pockets? Or that the first basketball was a football?This book explains how such things were possible and how these sports slowly evolved into the games we know today.