Henry Chadwick (1834 – April 20, 1908) was an English-born American sportswriter, baseball statistician and historian, often called the "father of baseball" for his early reporting on and contributions to the development of the game. He edited the first baseball guide that was sold to the public. He is credited with creating box scores, as well as creating the abbreviation "K" that designates a strikeout. He is said to have created the statistics of batting average and earned run average (ERA).