An archaeology student has discovered a 5,000-year-old piece of chewing gum.
Sarah Pickin, 23, found the lump of birch bark tar – complete with Neolithic tooth prints - while on a dig as a volunteer in Finland.
Neolithic people used the material as an antiseptic to treat gum infections as well as a glue for repairing broken pots.
Trevor Brown, Ms Pickin’s tutor at the University of Derby, said: “It’s particularly significant because well-defined tooth imprints were found on the gum that Sarah discovered.”
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