Ancient chewing gum?

I noticed this article when I finished reading the story about Leona Helmsley. When you see a headline like this you just have to click on it: Student dig unearths ancient gum

A 5,000-year-old piece of chewing gum has been discovered by an archaeology student from the University of Derby.

Sarah Pickin, 23, found the lump of birch bark tar while on a dig in western Finland.

Neolithic people used the material as an antiseptic to treat gum infections, as well as a glue for repairing pots.

What more is there to say about that, really.