The American flag flying at Fort McHenry during the War of 1812 inspired "The Star-Spangled Banner," but the war itself inspired little else. (Smithsonian Institution/National Museum of American History)

The American flag flying at Fort McHenry during the War of 1812 inspired "The Star-Spangled Banner," but the war itself inspired little else. (Smithsonian Institution/National Museum of American History)