Here is the building part............in a large part............probably mostly...............enslaved African men built the US capital..................from stones from a quarry from Aquia creek,,,,,,,,,in VA..........

Construction[edit]

The Capitol when first occupied by Congress (painting circa 1800 byWilliam Russell Birch)

L'Enfant secured the lease of quarries at Wigginton Island and along Aquia Creek in Virginia for use in the foundations and outer walls of the Capitol in November 1791.^[23] Surveying was under way soon after the Jefferson conference plan for the Capitol was accepted.^[17] On September 18, 1793, first President George Washington, along with eight other Freemasons dressed in masonic regalia, laid the cornerstone, which was made bysilversmith Caleb Bentley.^[24][25]

Construction proceeded with Hallet working under supervision of James Hoban, who was also busy working on construction of the "President's House" (also later known as the "Executive Mansion"). Despite the wishes of Jefferson and the President, Hallet went ahead anyway and modified Thornton's design for the East Front and created a square central court that projected from the center, with flanking wings which would house the legislative bodies. Hallet was dismissed by Secretary of State Jefferson on November 15, 1794.^[26] George Hadfield was hired on October 15, 1795, as Superintendent of Construction, but resigned three years later in May 1798, because of his dissatisfaction with Thornton's plan and quality of work done thus far.^[27]

The Senate north wing was completed in 1800. The Senate and House shared quarters in the north wing until a temporary wooden pavilion was erected on the future site of the southern House wing which served for a few years for the Representatives to meet in, until the House of Representatives south wing was finally completed in 1811, with a covered wooden temporary walkway connecting the two wings with the Congressional chambers where the future center section with rotunda and dome would someday rise. However, the House of Representatives moved early into their House wing in 1807. Though the North Senate wing building was incomplete, the Capitol held its first session of the United States Congress with both chambers in session on November 17, 1800. The National Legislature was moved to Washington prematurely, at the urging of second President John Adams, in hopes of securing enough Southern votes in the Electoral College to be re-elected for a second term as President.^[28]