The National Football League (NFL) stands today as a colossal institution in American sports, generating an impressive $14 billion in annual revenue. However, its journey to success was not without significant hurdles. 'The League: How Five Rivals Created the NFL and Launched a Sports Empire' by John Eisenberg delves into the historical narrative of the NFL's formative years, focusing on five key figures: Art Rooney, George Halas, Tim Mara, George Preston Marshall, and Bert Bell.These pioneering sportsmen believed in the potential of professional football at a time when college football, baseball, boxing, and horseracing were the dominant forces in American sports. Through their vision, determination, and strategic sacrifices, they managed to keep the league afloat during its tumultuous early decades of the 1920s through the 1940s.Each of these men made significant contributions at critical junctures, often putting the long-term good of the league ahead of their teams' short-term successes. Their business acumen and passion for the sport were instrumental in transforming what was once a struggling enterprise into the beloved national pastime it is today.'The League' is more than just a history book; it is a remarkable story of business ingenuity and perseverance. Eisenberg's detailed narrative provides invaluable insights into the challenges faced by these early NFL owners and their unwavering commitment to their vision. This book is an essential read for anyone interested in sports history, business strategy, or simply understanding how the NFL became an integral part of American culture.