<P> The Luther rose, 1706 print after the 1530 design . </P> <Li> <P> Hearts suit in a 1540s German deck of playing cards </P> </Li> <P> Hearts suit in a 1540s German deck of playing cards </P> <Li> <P> The Danish "Heart Book", a heart - shaped manuscript of love ballads from the 1550s . </P> </Li>

Where does the symbol of the heart come from