Linus Torvalds released the Linux kernel on 5th October 1991. Linux is a free Unix-like operating system created by Torvalds.
FYI, the original name of the O.S. was Freax. It was changed to Linux by Ari Lemmke without consulting Linus Torvalds.
The open source distribution system, Cydia, which can be installed on jailbroken iPhones is named after the codling moth, Cydia pomonella, whose larvae eat the apple fruit upon hatching. [more...]