Chewing gum was invented a long time ago The ancient Maya and other Central American Indians used to chew chicle, which is the thick, rubbery, milky juice of the sapodilla tree.
Some North American Indians chewed spruce gum resin. European settlers in America began to market this in the 1800s and then moved on to the chicle based chewing gums. These had a better chewing quality and also held the flavors that were added to them. Chicle is still used as part of the basis for modern gums.