The ancient custom of the mistletoe dates back to the Druids and Romans. The Druids and Romans believed mistletoe had the magic power of peace, symbolizing "peace to all who enter." Opposing soldiers who found themselves under the mistletoe quickly laid down their arms, and declared peace for the day.

The custom of the mistletoe has remained popular in England and the United States. Mistletoe is placed over the doorway, and those who pass under the doorway are given a kiss.