Chew Gum was invented by Thomas Adams in 1870. At that time Adams tried to make toys, masks, and rain boots out of chicle, but every experiment failed. Sitting in his workshop one day,tired and discouraged, he popped a piece of surplus stock into his mouth. In 1870, he opened the world’s first chewing gum factory making Adams New York No. 1. He was born in 1818 and died in 1905
Invention of Zipper by Gideon Sundback, in 1913. The design used today, based on interlocking teeth, was invented by an employee of Whitcomb Judson's, Swedish born scientist Gideon Sundback. After that more improvements patented in 1917 as the "Separable Fastener". Only after Gideon Sundbach, had remodeled Judson's fastener into a more streamlined and reliable form, was the fastener a success.
Yale Lock was invented by Linus Yale Jr. in 1860. He was born in April 4, 1821 and died in Dec 25 1968. Yale's lock used a flat key with serrated edges like the ones we still use today. Yale lock is based on a mechanism first employed by the ancient Egyptians over 4000 years ago.
