 Celtic Druids were one of the first to use mistletoe, as they saw it as a symbol of vivacity, and used it to restore fertility. In Norse mythology, the goddess Frigga declared mistletoe a symbol of love, after the gods resurrected Odin's son Baldur. She then bowed to plant a kiss on all those who passed beneath it. Norse warriors would discuss peace by laying down their arms under a bow of mistletoe. As mistletoe was often hung over doorways, this evolved into a tradition of the guests kissing the host's hand when entering their home. As for the well-known kissing tradition, this officially comes from England. Now the original tradition was rather misogynistic. Big surprise! Men were allowed to steal a kiss from any woman standing underneath the mistletoe. And if the lady refused, bad luck would befall them. Another tradition had berries on the mistletoe, and every time someone kissed under it, they would pick a berry. And once it was empty, no more smoochy smoochy under that mistletoe.