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Abner Doubleday is credited with inventing baseball in Cooperstown, New York.
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Alexander Joy Cartwright develops the rules of baseball.
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The first official game of baseball is played between the Knickerbockers and a group of cricket players.
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California enters the Union.
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The Civil War begins.
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The first women's baseball team is started by a group from Vassar College.
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Candy Cummings throws the first curveball in baseball.
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An all-professional team, the Cincinnati Red Stockings, takes the field for the first time.
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The National League is established, with William Hulbert as president.
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Custer’s defeat at Little BigHorn.
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Four players are banned from baseball for accepting bribes.
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American Baseball Association, also known as the Beer and Whiskey League, is created.
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The Brooklyn Bridge opens.
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Moses Fleetwood Walker becomes the first African-American player in the Major Leagues.
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Pete Browning uses the first Louisville Slugger bat.
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The Players’ League is created.
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Cy Young takes the mound in the Major Leagues for the first time.
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Ellis Island opens as an immigration station.
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The Spanish – American War begins.
