During the War of 1812 against the United States, the British again employed rockets, but with less affect. In 1814, hundreds of rockets were used against Fort Henry in Baltimore, Maryland, but when dawn broke, the fort had still refused to surrender. This famous battle was the inspiration for Frances Scott Keys poem, "The Star Spangled Banner."
In 1844, British engineer, William Hale, patented a "rotary rocket," that was angled to give the rocket a spin, similar to rifled bullets. Unfortunately, the military was more impressed with improvements in standard artillery. Even though the British used rescue rockets to send ropes to people on sinking ships, and whalers used rockets to launch harpoons, there were few enhancements to rockets for warfare until the early days of WWII.