In accordance with the "Residence Act" passed by Congress in 1790, President Washington in 1791 selected the area that is now the District of Columbia to serve as the nation’s capital. French engineer Pierre Charles L'Enfant was charged with planning the new city of Washington. He located the U.S. Capitol Building at the elevated east end of the National Mall, on the brow of what was then called Jenkins' Hill. The site was, in L'Enfant's words, "a pedestal waiting for a monument." As the country grew so did Capitol Hill, with the construction of buildings housing the Congress, Supreme Court, Library of Congress and Botanic Garden.
History of Capitol Hill
The U.S. Capitol was built atop Jenkins' Hill, now often referred to as "Capitol Hill," in 1793. Since then many additional buildings have been constructed around this site to serve Congress and the Supreme Court.