Today Google doodle chose the zipper design as a way to celebrate
Sundback and the zipper. Gideon Sundback first introduced the zipper titled "Hookless No. 2" in 1914, but the world did not readily accept the invention.
Prior to his product introduction, several other devices were created but they housed a variety of issues such as jamming or pulling apart easily. Sundback's invention was different than the prior versions which involved sharp hooks looping together.
His method involved tight and secure metal fasteners that would not jam up or pull apart easily. This invention became the first reliable and practical zipper design