Saint Valentine was a Roman martyr who was put to death. The love story behind Valentine's Day is that Saint Valentine left a note for his love, a jailer's daughter, signed "From Your Valentine" before his death. Around 1 billion Valentine's Day cards are sold each year in the United States. In Roman mythology, Cupid is depicted as the child of Venus who used his bow and arrows to induce love. Valentine's Day is not widely celebrated in France.