It was gifted freely by Maryland at the request of George Washington. Originally Virginia also gifted a portion across the Potomac (DC was an equilateral diamond) but in 1846 this area rejoined Virginia because of economic hardship and support for slavery (which the larger Maryland side was against).
Washington D.C used land from Maryland and Virginia.
The capital is Washington DC. It was designed to be the capital out of land that was swampy.
Seattle Seattle
The Capital at Washington DC.
Virginia and Maryland gave up land to create Washington, DC. Much of it was swamp land.
Benjamin Banneker
Maryland and Virginia
No but Virginia did since it was not needed.
585 miles by land
61 square miles
574 statute (land) miles
information on washongton d.c land form