Tuesday, September 17, 1991
Linux kernel 0.01 is introduced
The GNU foundation was started in 1983 with the goal of providing a completely free and open source version of Unix and it's utilities. By 1991, many of the utilities had been developed, but they all required an operating system to run on. On this day in 1991, Linus Torvalds introduced the world to his first version of the Linux kernel to fill this need.