CHRISTOPHER KLEIN is the author of four books, including Strong Boy: The Life and Times of John L. Sullivan, America's First Sports Hero. A frequent contributor to History.com, Christopher has also written for The Boston Globe, The New York Times, National Geographic Traveler, Harvard Magazine, Smithsonian.com, and AmericanHeritage.com. He lives in Andover, Massachusetts.
~~tag-text~~
'I can lick any son-of-a-bitch in the world.' So boasted John L. Sullivan, the first modern heavyweight boxing champion of the world, a man who was the gold standard of American sports for more than a decade and the first athlete to earn more than a mi... SEE MORE