Boroughs of New York City the term is used to refer to New York City as a whole unambiguously, avoiding confusion with any particular borough or with the Greater New York metropolitan area. The term is also used by politicians to counter a frequent focus on Manhattan and thereby to place all five boroughs on equal footing. In the same vein, the term "outer boroughs" refers to all of the boroughs excluding Manhattan, even though the geographic center of the city is along the Brooklyn–Queens border. All five boroughs were created in 1898 during consolidation, when the city's current boundaries were established. The Bronx originally
History of New York City (1855–1897) movement of the 1950s. Pre-war steam ferries had already made Brooklyn Heights into a bedroom community for affluent professionals on Wall Street and other urban areas. Elevated railroads, operated by the Manhattan Railway Company, and other new public transport expanded the commuter area of New York, allowing development of suburbs for commuters of more modest means in Upper West Side and other distant areas. Plans were made for subways to still more remote exurbs such as Harlem and the West Bronx. In the late 19th century, the island's schist bedrock encouraged the early skyscrapers whose successors characterize its skyline today.