The Knickerbockers Baseball Club, the first baseball team to play under the modern rules, is founded in New York.

The New York Knickerbockers were one of the first organized baseball teams which played under a set of rules similar to the game today. Founded as the "Knickerbocker Base Ball Club" by Alexander Cartwright in 1845, the team remained active until early 1870s.In 1851, the New York Knickerbockers wore the first ever recorded baseball uniforms.