The second Negro National League was established in 1933 by Gus Greenlee, an African-American businessman of Pittsburgh, Pennsylvania, two years after the first Negro National League (NNL) had disbanded, after the start of the Great Depression. Formation of NNL consisting of 7 teams β Baltimore Black Sox, Cole's American Giants, Columbus Blue Birds, Indianapolis ABCs (II) (moved to Detroit in April), Homestead Grays, Nashville Elite Giants and Pittsburgh Crawfords; Homestead was expelled early in the season for raiding Detroit's roster, Columbus was replaced mid-season by the Akron Black Tyrites who were then replaced by the Cleveland Giants.
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