Changes

A key development was the Knickerbocker Rules, developed in 1845 in New York. Some of the rules are still utilized from these rules today, such as the rule that the baseball must be pitched and not thrown. However, many rules, such as the number of outs (21) and hitting the ball out of the filed is a foul are not. Nevertheless, the standardization attempt now began to harmonize baseball rules across different areas, leading to the eventual merger of the game.

==America's Pastime Develops==