Christmas trees have a long and storied history, dating back to pre-Christian times when they were used to celebrate the winter solstice. However, the modern tradition of decorating a Christmas tree began in Germany in the 16th century. According to legend, Martin Luther, a Protestant reformer, was walking through the forest one winter evening and was struck by the beauty of the trees covered in snow and lit by the moonlight. He brought one home and decorated it with candles, creating the first Christmas tree. Since then, the tradition has spread around the world and become a beloved part of the holiday season.