New 3x5 Star Spangled Banner Flag American US USA Flags Material: Polyester Size: 3' x 5' (36" x 60") Includes 2 Brass grommets for hanging Shortly before the war of 1812 2 new stars were added to Betsy Ross's 13-star design to represent new colonies. This new design was seen flying triumphantly over Fort McHenry after bombardment by British ships in Chesapeake Bay, and became known as the Star Spangled Banner after the words to the American National Anthem were penned by lawyer and amateur poet Francis Scott Key.