The City of London is widely referred to simply as the City (differentiated from the phrase "the city of London" by capitalising "City") and is also colloquially known as the Square Mile, as it is in area. Both of these terms are also often used as metonyms for the United Kingdom's trading and financial services industries, which continue a notable history of being largely based in the City. The name "London" is now ordinarily used for a far wider area than just the City. "London" most often denotes the sprawling London metropolis, or the 32 London boroughs, in addition to the City of London itself. This wider usage of "London" is documented as far back as 1888, when the County of London was created.