What has been around for millions of Christmases but its no more than a month old?

The answer to this riddle is a Christmas tree. While the tradition of decorating trees has been celebrated for centuries, the specific tree used for Christmas is typically cut down and brought into homes just weeks before the holiday, making it no more than a month old. However, the concept of celebrating with evergreen trees has been around for millions of years, as evergreens themselves have existed long before modern Christmas traditions.