Boroughs of New York City individual county, each borough also elects a district attorney, as does every other county of New York State. While the district attorneys of Manhattan, Brooklyn, and Staten Island are popularly referred to as such by the media (e.g., "Manhattan D.A. Cyrus Vance, Jr.", or "Brooklyn D.A. Kenneth P. Thompson"), they are technically and legally the district attorneys of New York County, Kings County and Richmond County, respectively. There is no such distinction made for the district attorneys of the other two counties, Queens and the Bronx, since these boroughs share the respective counties' names. Because the five district attorneys are,
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