FAQ About Mistletoe
While some people attribute its origin to the Norse mythology's god Baldur, Forsyth argues that the most extensive research on the plant was published in the 1720s. Though, it doesn't have anything to do with kissing under the mistletoe. Whatever happened between 1720 and 1784, somehow kissing under a mistletoe became a tradition.
Frigg, aka Odin's wife in Norse mythology, portrayed mistletoe as a symbol of love and an oath of devotion. At the same time, mistletoe's links to fertility and vitality became widely included in Christmas celebrations in the 18th century.