An archaeology student from the University of Derby has found this 5000-year-old piece of chewing gum, complete with tooth imprints. The gum came from birch-bark, and may have been used either as an anti-septic or as glue for sticking together pots. Link

But...Did it lose its flavor???
University of Derby puts the "BC" in ABC gum
(Already Been Chewed)
Big deal. The piece I'm chewing right now is older. Got it in a pack of baseball trading cards.
I couldn't understand some parts of this article, but it sounds interesting