Viscum album Christianity became widespread in Europe after the 3rd century AD, the religious or mystical respect for the mistletoe plant was integrated to an extent into the new religion. In some way that is not presently understood, this may have led to the widespread custom of kissing under the mistletoe plant during the Christmas season. The earliest documented case of kissing under the mistletoe dates from 16th century England, a custom that was apparently very popular at that time. Winston Graham reports a Cornish tradition that mistletoe was originally a fine tree from which the wood of the Cross was made,
Plant-for-the-Planet 1 million trees in each of their own countries. Plant-for-the-Planet promotes the view that each tree is a contribution towards environmental and climate protection. It also suggests that each tree planting is an action for social justice. The organisation says that it is most often the developing countries that suffer the most from the effects of climate change, despite the fact that they have most often done the least to cause it. Plant-for-the-Planet says it considers each tree to also be a symbol for climate justice. By the start of 2011, there were children participating in more than 93 countries.