The custom of having a decorated evergreen tree during Christmas actually originated in Germany during the 16th century. The first recorded use of a decorated Christmas tree was in 1510, when Martin Luther, a German theologian, brought a small fir tree into his home and decorated it with candles to represent the light of Jesus Christ. Over time, this practice became more popular and spread throughout Europe and eventually to North America. Now, decorating the Christmas tree is a beloved tradition in many countries around the world, and it's a special way to celebrate the holiday season.