December 13, 1791
Gentlemen of the Senate and of the House of Representatives:
I place before you the plan of a city that has been laid out within the district of 10 miles square, which was fixed upon for the permanent seat of the Government of the United States.
GO. WASHINGTON.
George Washington, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/200633