A popular story that many credit for the beginning of the Christmas tree comes from the life of Matin Luther. The legend goes like this: "One crisp Christmas Eve, about the year 1500, he was walking through snow-covered woods and was struck by the beauty of a group of small evergreens. Their branches, dusted with snow, shimmered in the moonlight. When he got home, he set up a little fir tree indoors so he could share this story with his children. He decorated it with candles, which he lighted in honor of Christ's birth" (Christmas Tree Tradition has Ancient Origins).
While no one is exactly sure where the Christmas tree came from, it is obvious that it is prevolent in today's culture and a huge part of Christmas.
http://www.allaboutjesuschrist.org/origin-of-the-christmas-tree-faq.htm
http://www.christmas-tree.com/where.html
