washington history

Washington, D.C. (pronounced /ˈwɒʃɪŋtən ˌdiːˈsiː/; formally, the District of Columbia and commonly referred to as Washington, the District, or simply D.C.) is the capital of the United States, founded on July 16, 1790. The City of Washington used to be a separate municipality within the District of Columbia until an Act of Congress in 1871 effectively merged the City and the District into a single entity. It is for this reason that the city, while legally named the District of Columbia, is known as Washington, D.C. The city is located on the north bank of the Potomac River and is bordered by the states of Virginia to the southwest and Maryland to the other sides. The District has a resident population of 588,292; however, due to commuters from the surrounding suburbs, its population rises to over one million during the workweek. The Washington Metropolitan Area, of which the District is a part, has a population of 5.3 million, the eighth-largest metropolitan area in the country.