Gum
In the late 1840s, John Curtis developed the first commercial spruce tree gum by boiling resin then cutting it into strips that were coated in cornstarch to prevent them from sticking together. By the early 1850s, Curtis had constructed the world's first chewing gum factory, in Portland, Maine. But, did you know that chewing bubble gum is said to keep one from crying, as it reduces stress and helps in concentration?
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