January 1984 Richard Stallman quits his job at MIT and starts working on the GNU Project.
Month unknown Free Software Foundation, an organization for creating and promoting free software, is founded by Richard Stallman.
March 1985 The GNU manifesto, a statement by Richard Stallman advocating the cause of free software movement, is published in the March 1985 issue of Dr. Dobb's Journal
August 25 1991 Linus conceives the idea of Linux and announces the project in a Usenet Post
September 1991 Version 0.01 is released on the Net
January 1992 First Linux Newsgroup: alt.os.linux founded in the UseNet
April 1992 Ari Lemmke starts the popular Linux newsgroup comp.os.linux in the UseNet
November 1992 Adam Richter announces the release of the first Linux Distribution from his company: Yggdrasil
June 1993 Slackware, the famous Linux distribution is released by Peter Volkerding
August 1993 Matt Welsh releases Linux Installation and getting started: version 1
March 1994 Linux kernel version 1.0 is released
For a detailed story click here
A small digression: Yggdrasil is the Viking world tree from the old Norse mythology and also the name of the first Linux distro, so there you have the explanation for the Vikings and Berserks in this forum.