A Christmas tree is a decorated tree, typically an evergreen conifer, that is used as a symbol of the Christmas holiday. Families often place the tree in their homes, where it is adorned with lights, ornaments, and sometimes a star or angel on top. The tradition of decorating a tree for Christmas dates back to the 16th century in Germany. The practice has since spread worldwide, with various cultures adding their unique touches. Some people use artificial trees, while others prefer real ones. The tree is often a central part of holiday celebrations, bringing joy and a festive atmosphere to homes during the holiday season.