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:
... was an Ostrogoth and was a notary of Gothic kings in Italy. At the time of Justinian, he was a Christian and possibly bishop of Croton. In approximately 580, he wrote "De ...