141st New York State Legislature Monroe County (two districts). The Assembly districts were made up of contiguous area, all within the same county. In 1917, the Legislature redistricted the Senate seats, and re-apportioned the number of assemblymen per county. Bronx County—which had been part of New York County at the time of the previous apportionment and occupied roughly the area of four Assembly districts—was properly separated, and was apportioned eight seats. New York County (without the Bronx) lost eight seats; and Erie, Jefferson and Ulster counties lost one seat each. Queens County gained two seats; and Broome, Nassau, Richmond, Schenectady and Westchester counties gained one
Manhattan of Greater New York", Manhattan and the Bronx, though still one county, were established as two separate boroughs. On January 1, 1914, the New York State Legislature created Bronx County, and New York County was reduced to its present boundaries. The construction of the New York City Subway, which opened in 1904, helped bind the new city together, as did additional bridges to Brooklyn. In the 1920s Manhattan experienced large arrivals of African-Americans as part of the Great Migration from the southern United States, and the Harlem Renaissance, part of a larger boom time in the Prohibition era that included