From chapters.ca:Gum has been around for centuries. The ancient Greeks chewed sap from mastic trees. The American Indians chewed spruce resin. Men in top hats and women in puffy dresses chewed gum to cure things like stomachaches. Gum wasn't that exciting. But what if gum chewers could blow bubbles while chewing it? In the late 1920s a factory in Philadelphia was working on a top secret project. Month after month the workers experimented with different ingredients and formulas. And month after month all they had to show for their hard work was a big sticky mess. Would there be no bubble gum? Sometimes the best inventions come from the most unexpected places... Full of fun historical facts, Pop! is the true story of how bubble gum was invented.
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