Chewing gum existed 9,700 years ago! Stone Age hunter-gatherers munched on resin to prevent tooth decay : vimarsana.com

​A variety of substances with similar properties, such as resins from coniferous trees, natural bitumen, and other plant gums, are known to have been used in analogous ways in many parts of the world.

Related Keywords

Gothenburg , Vastra Gotalands Lan , Sweden , Huseby Klev , , Middle Palaeolithic , Random Forest , Chewing Gum , Tooth Decay , Resin , Stone Age , Hunter Gatherers , Gum Infection ,