), officially the City of Chicago, is the third-most populous city in the United States.
With over 2.7 million residents, it is also the most populous city in both the state of Illinois and the Midwestern United States. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10 million people and is the third-largest in the United States.
These issues also helped propel another Illinoisan, Abraham Lincoln, to the national stage.
Lincoln was nominated in Chicago for US President at the 1860 Republican National Convention.
Within seven years it grew to more than 4,000 people. The City of Chicago was incorporated on Saturday, March 4, 1837, and for several decades was the world's fastest-growing city.
Chicago has often been called a global architecture capital During this period, Chicago made noted contributions to urban planning and zoning standards, new construction styles (including the Chicago School of architecture), the development of the City Beautiful Movement, and the eventual creation of the steel-framed skyscraper.