This document provides a history of GNU/Linux, including key events and individuals. It describes how Richard Stallman started the GNU project in 1984 to develop free software. It then discusses how Linus Torvalds developed the Linux kernel in 1991 and released it under the GPL license, allowing it to be combined with GNU software to form the GNU/Linux operating system. The document concludes with an overview of some popular GNU/Linux distributions like Ubuntu, Fedora, and Debian.