A seemingly intrinsic part of the game of baseball is the keeping of statistics on the achievements of the players. Started by Henry Chadwick in the 19th century who devised the concept of batting average based on his experience of cricket. Commonly used statistics are explained here:
... (1870). Between 1838 and 1840 in conjunction with FW Schubert, he published an edition of the works of Kant, to which he appended a history of the Kantian doctrine. ...