How was chewing gum invented? Who invented it?

Chewing gum is one of the oldest sweets in the world. Archaeologists have found that long before the historical records, human ancestors loved to chew natural resin for fun, which is the most primitive "chewing gum". For thousands of years, people from different regions and cultures have the habit of chewing gum. For example, the ancient Greeks cleaned their teeth with resin to keep their mouths fresh, the Indians loved to chew the sap of tree trunks, and the Mayans in Central America loved to chew gum. There is a deep affection between the United States and chewing gum, not only because chewing gum is one of the important export products of the United States, but also the pride in the history of American invention. The chewing gum we ate today can be traced back to 1848. At that time, John Curtis of the United States made the first piece of chewing gum for sale and processing. 1869, photographer thomas adams made the first chewing gum product made of chewing gum. The following year, he introduced a kind of chewing gum "Black Jack" flavored with licorice essence, and changed the chewing gum from block to strip, which was very popular and can still be found in the market. 1906 invented chewing gum, but the first kind of chewing gum was too sticky to sell. Until 1928, the technology of making chewing gum was finally perfected and successfully entered the market. The first batch of chewing gum was pink and named "dubble bubble". Sugar-free chewing gum came out in the 1950s. Today, the main materials for making chewing gum are sugar, syrup, seasoning, softener and gum base. In Mexico, there has been a habit of chewing wild pear juice since ancient times; 1860, Adams of the United States solidified this sap and sold it, named it [Jikuru] (meaning chewing); Then, after the odor of Jikuru was eliminated, he renamed it Adams Gum and sold it in large quantities. 1880, American rich people added sugar and mint to chewing gum to make sweet and fragrant chewing gum.