 In 2016, experts verified the authenticity of a set of documents titled "Laws of BaseBall" written in 1857 by New York Knickerbockers president Daniel "Doc" Adams after a discussion with executives of 14 other New York-area clubs.The documents established the rules of the game, including - for the first time - nine innings, nine players on the field and 90-foot basepaths.Cartwright was not a participant at the 1857 meeting, as he was living in Hawaii.