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Chewing gum has existed since the Neolithic period. A 5,000 year old chewing gum with tooth imprints, which was made of birch bark tar has been found in Kierikki, Yli-Ii, Findland. The bark tar of which the gums were made is believed to have antiseptic properties and other medicinal advantages. The ancient Aztecs used chicle as a base for making a gum-like substance.
Chewing gum is as old as the Neolithic Age also known as New Stone Age – which was a period in the development of human technology. The Neolithic is defined as a suite of behavioral and cultural characteristics, including the use of wild and domestic crops and the use of domesticated animals.
Chewing gum is traditionally made of chicle, a natural latex product, or synthetic rubber known as pollyisobutylene, which is a non-vulcanisable form of the butyl rubber used for inner tubes or to line tubeless tires. For reasons of economy and quality, many modern chewing gums use rubber instead of chicle. Other forms of chewing gums were made from the resin of the mastic tree, plants, grasses, resins, the sap of spruce trees and from paraffin wax.
Mostly of the people love chewing gums. But in 1992, chewing gum was banned in Singapore in spite of it can be a potential alternative drug delivery option though it was ignored for the following reasons:
(1) people disposed of gum incorrectly by sticking them under places like chairs or tables, (2) it causes serious maintenance problems in high-rise public housing flats, (3) vandals disposing of spent gum in mailboxes, (4) disposed inside keyholes and elevator buttons, (5) left on floors, stairways and pavements in public areas and (6) left on the seats of public buses.