During its four-century history, New York City has been known by a variety of alternative names and euphemisms, both officially and unofficially. Frequently shortened to simply "New York", "NY", or "NYC", New York City is also known as "The City" in some parts of the Eastern United States, in particular, the State of New York and surrounding U.S. states. New Yorkers also use "The City" to refer specifically to the borough of Manhattan.