1. The melody of The Star Spangled Banner is from an old British drinking song written by John Stafford Smith called To Anacreon in Heaven.
2. Some publications use a hyphen in the title: The Star-Spangled Banner.
3. The song is sung before professional baseball games.
4. Key started writing the song while he was detained on a British ship.
5. There are four verses to The Star Spangled Banner.