The actual flag Key saw — the Star-Spangled Banner — is now housed in a climate-controlled, light-protected chamber at the Smithsonian's National Museum of American History in Washington, D.C.

American flag flies in battle Sept. 3, 1777. By Andrew Glass 09/03/2007 04:49 AM EDT. ... ordered the new flag raised in a clash with an advance guard of British and Hessian troops. ...