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Valentine’s Day symbols that are used today include the heart-shaped outline, doves, and the figure of the winged Cupid. Since the 19th century, handwritten valentines have given way to mass-produced greeting cards. In Europe, Saint Valentine’s Keys are given to lovers “as a romantic symbol and an invitation to unlock the giver’s heart”, as well as to children to ward off epilepsy (called Saint Valentine’s Malady).
