The "United States National Anthem," known as "The Star-Spangled Banner," was written by Francis Scott Key in 1814. The lyrics were inspired by Key's observations during the Battle of Fort McHenry in the War of 1812, where he witnessed the American flag flying after a night of bombardment. The anthem was officially adopted in 1931. The song is known for its challenging vocal range and is often performed at public events, including sports games and national holidays. Its themes of resilience and patriotism resonate with many Americans, making it a significant symbol of national pride.