Students at Shiloh Hills Elementary School celebrated the 200th anniversary of “The Star-Spangled Banner” last week by making a human reproduction of the flag that inspired Francis Scott Key. The Great Garrison Flag flew over Fort McHenry during the War of 1812. The flag had 15 stripes and 15 stars. It was huge: At 30 feet by 42 feet, it was “a flag so large that the British would have no difficulty seeing it from a distance,” as Maj. George Armistead, the commander of Fort McHenry, specified when it was sewn.