Original sentence: It is frequently traced to the symbolism of evergreen trees in pre-Christian winter rites, in particular through the story of Donar's Oak (though most oak trees are not evergreen) and the popularized story of Saint Boniface and the conversion of the German pagans
Edited sentence: In particular the story of Donar's Oak is mentioned (though most oak trees are not evergreen) and the popularized story of Saint Boniface and the conversion of the German pagans.It is sometimes claimed to have connections to the symbolism of evergreen trees in pre-Christian winter rites, although little evidence of a direct connection exists