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 tree is usually set up in early December and remains until the Epiphany, which is celebrated on January 6. Many people enjoy gathering around the tree to exchange gifts, sing carols, and celebrate the festive season together.