Book excerpt: In the 150 years of college football history, the national championship has been decided by unanimous vote only 33 times. This book analyzes the various methods of selecting these champions and what made the teams special. Drawing on archives and early published works, a firsthand description of the 1869 inaugural game between Princeton and Rutgers is provided, along with details of how these earliest teams were managed. The contributions and innovations of Walter Camp, the "Father of Football," are explored, as is the evolution of the game itself. Each unanimous season since the turn of the 20th century--from Yale in 1900 to LSU in 2019--is covered in detail, with a brief history of each school's football program. The question "is there a best ever team" is explored.