The national anthem of the United States is called "The Star-Spangled Banner." Written by Francis Scott Key in 1814, the lyrics were inspired by Key's experiences during the Battle of Fort McHenry in the War of 1812. The anthem captures the resilience and patriotism of the American spirit, celebrating the sight of the American flag still flying after a night of bombardment. It was officially adopted as the national anthem in 1931. The tune is based on a popular British song, and "The Star-Spangled Banner" is often performed at public events, especially during sporting occasions.