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Baseball is invented
Abner Doubleday is said to have created the game in a cow pasture in Cooperstown, NY. -
Diamond is created
Alexander Cartwright designed a baseball field that is still in use today. -
First Official Baseball Game
Cartwright's Knickerbocker team loses to the New York Baseball Club at Elysian Fields in Hoboken, NJ. -
First Professional Baseball Team
Cincinnati Red Stockings become the first organized baseball team in which the players were paid. -
First Major League formed
Baseball's National Association is formed, with teams located in Boston, Chicago, Cincinnati, Hartford, Louisville, New York, Philadelphia and St. Louis, -
National League is formed
National League replaces the NABBP. -
Segregation
Gentleman's agreement is reached, prohibiting blacks from playing professional baseball. -
Western League is Formed
Ban Johnson creates the Western League, whose teams consist of Detroit, Grand Rapids, Indianapolis, Kansas City, Milwaukee, Minneapolis, Sioux City and Toledo. Would later become the American League.