Bruno Hauptmann is convicted in the Lindbergh baby case, France tests a nuclear weapon, and the last "Peanuts" comic strip runs, all on this day.
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SXC
1920: The Negro National League is organized by a coalition of baseball team owners at a meeting in a Kansas City YMCA. The new league was the first baseball circuit for black players to achieve stability and last more than one season. At first the league operated mainly in midwestern cities, ranging from Kansas City in the west to Pittsburgh in the east, but in 1924 it expanded into the south, adding franchises in Birmingham and Memphis.