Ancient Norse mythology the history of mistletoe-induced kissing means going back to ancient Scandinavia -- to custom and the Norse myths: "It was also the plant of peace in Scandinavian antiquity. If enemies met by chance beneath it in a forest, they laid down their arms and maintained a truce until the next day." This ancient Scandinavian custom led to the tradition of kissing under the mistletoe. But this tradition went hand-in-hand with one of the Norse myths, namely, the myth of Baldur. Baldur's death and resurrection is one of the most fascinating Norse myths and stands at the beginning of the history of mistletoe as a "kissing" plant.