Linux is the world’s most dominant operating system. Launched in 1991 by Linus Torvalds, it’s the quintessential example of user-led open source innovation, as it represented Linus’ desire for an operating system that he could run on his personal computer. Eventually the world took notice and everyone from hardware companies to emerging technology providers found themselves participating in the development of Linux and construction of solutions to run on top of the open source OS.
https://www.linuxfoundation.org/projects/Linux