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Which baseball rules were established by the New York Knickerbocker Base Ball Club?

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The New York Knickerbocker Base Ball Club, led by Alexander J. Cartwright, formulated a foundational set of rules in 1845 that helped shape modern baseball.

Key rules and innovations established by the club include:

  • Tagging Out Runners: A significant departure from earlier games like rounders, the Knickerbockers introduced the rule that a runner is put out by being tagged with the ball rather than being hit by a thrown ball.12
  • Use of a Hard Ball: By eliminating the need to hit runners with the ball, the club enabled the use of a harder, more durable ball, which facilitated a larger-scale game.12
  • Base Distance: Cartwright is credited with establishing the distance between bases at 90 feet (27.4 metres), a standard that remains in place today.2
  • Field and Equipment Specifications: In 1854, the club helped revise rules to prescribe the specific weight and size of the ball, as well as the dimensions of the infield.1

These regulations, known as the "New York game," eventually became the predominant version of the sport following the American Civil War.1