Mike "King" Kelly was a hard-living, hard-drinking son of a Civil War veteran whose skills at baseball and infectious charm turned him into the game's first hero, and a symbol of what it meant to be a celebrity in America in the 1880s and 1890s. A Hall of Famer and a two-time batting champion, Kelly's greatest contribution was probably in the popularity he brought to the game, which resulted in the 20th century's first fans, as the game began to mature...