1845 – The first known box score appears in the New York Morning News a month after the first set of rules are written by Alexander Cartwright and some of his fellow New York Knickerbockers.
1845 – The Knickerbocker Base Ball Club is formed, and Alexander Cartwright’s 20 rules, presented on September 13th, are adopted
1845 – Alexander Cartwright presents the first set of baseball rules, 20 in total.
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