 
 <translate> This is the relevant information: The lyrics come from "Defence of Fort M'Henry", a poem written on September 14, 1814, by the 35-year-old lawyer and amateur poet Francis Scott Key after witnessing the bombardment of Fort McHenry by British ships of the Royal Navy in Baltimore Harbor during the Battle of Baltimore in the War of 1812. So the final answer is Francis Scott Key. <hau> Wannan shi ne bayanin da ya dace: Kalmomin sun fito ne daga "Defense of Fort M'Henry", wani waka da aka rubuta a ranar 14 ga Satumba, 1814, da lauya mai shekaru 35 da mawallafin mawallafi Francis Scott Key bayan da ya ga bombardment na Fort McHenry da jiragen ruwa na Birtaniya na Royal Navy a Baltimore Harbor a lokacin yakin Baltimore a yakin 1812. Amsar karshe ita ce Francis Scott Key. 