who laid the cornerstone of the us capitol
United States Capitol cornerstone laying The United States Capitol cornerstone laying was the ceremonial placement of the cornerstone of the United States Capitol on September 18, 1793. The cornerstone was laid by president of the United States George Washington, assisted by the Grand Master of Maryland Joseph Clark, in a Masonic ritual.
United States Capitol The United States Capitol, often called the Capitol Building, is the home of the United States Congress, and the seat of the legislative branch of the U.S. federal government. It is located on Capitol Hill at the eastern end of the National Mall in Washington, D.C. Though not at the geographic center of the Federal District, the Capitol forms the origin point for the District's street-numbering system and the District's four quadrants.