IT History
Journal

1991 2026

Linux began as one student’s side project and grew into the foundation of the modern Internet. Follow its story from Linus Torvalds’ first announcement in 1991 through GNU, the kernel releases, Red Hat, Debian, Ubuntu and Android to containers, cloud computing and today’s infrastructure — a timeline of the people, ideas and communities that built Linux.

Events
81
Play the Interactive Timeline Every event, narrated, one step at a time
1991
  • March 10 Linus Torvalds buys the Intel 386 PC he will develop Linux on
  • April 3 The Legal Battle That Changed OS History: AT&T Sues BSD in 1991
  • July 3 Linus Torvalds posts his first request for the POSIX standard on comp.os.minix
  • August 25 Linus Torvalds announces his hobby OS on comp.os.minix
  • September 17 Linux 0.01 is uploaded to the FUNET FTP server, the kernel's technical birthday
  • October 5 Linux 0.02, the first publicly announced release able to run Bash and GCC, ships
  • November Linux 0.10 ships, able to compile itself
1992
  • January 5 Linux 0.12 ships and the kernel is relicensed under the GNU GPL
  • January 29 Andrew Tanenbaum publishes "Linux is Obsolete", igniting the microkernel debate
1993
  • July Slackware Linux 1.0, the oldest continuously maintained distribution, is released
  • August 16 Ian Murdock announces the Debian project
1994
  • March S.u.S.E. Linux 1.0, a German Slackware-derived distribution, is released
  • March 14 Linux kernel 1.0 is released
  • October 31 The first public Red Hat Linux release, beta 0.9 — the "Halloween" release — ships
1995
  • May 13 Red Hat Linux 1.0 is released
1996
  • May Linus Torvalds approves Tux the penguin as Linux's official mascot
  • June 9 Linux 2.0 ships with symmetric multiprocessing (SMP) support
  • October 14 Matthias Ettrich announces the KDE project
1997
  • July 5 Debian adopts its Social Contract and the Debian Free Software Guidelines
  • August 15 The GNOME project is announced
1998
1999
  • January 25 Linux 2.2.0 ships with an improved network stack and hardware support
  • February 18 IBM announces Linux support alongside Red Hat
  • March 3 GNOME 1.0, a fully free desktop environment, is released
  • March 9 Debian 2.1 "Slink" introduces APT
  • August 11 Red Hat goes public on NASDAQ
2000
  • August 10 The Open Source Development Labs (OSDL) is founded
  • October 31 SUSE Linux Enterprise Server, the first enterprise Linux distribution, ships for IBM S/390
  • December IBM announces a $1 billion investment in Linux
2001
  • January 4 Linux 2.4.0 ships with USB, PCMCIA, and ext3 support
2002
  • March 11 Judd Vinet releases Arch Linux 0.1
  • March 26 Red Hat Enterprise Linux 2.1, the first release to carry the RHEL name, ships
2003
  • March 6 SCO sues IBM for $1 billion over Unix code in Linux
  • September Red Hat announces it will discontinue Red Hat Linux, splitting into Fedora and Red Hat Enterprise Linux
  • November 6 Fedora Core 1 is released
  • December 17 Linux 2.6.0 ships with the O(1) scheduler, NPTL, and ALSA
2004
  • March 5 Canonical, publisher of Ubuntu, is founded
  • May 14 CentOS is released
  • August The first Akademy, KDE's annual developer conference, is held
  • October 20 Canonical ships Ubuntu 4.10 "Warty Warthog"
2005
  • April 7 Linus Torvalds makes the first commit to Git
  • August 9 The openSUSE Project launches, opening SUSE Linux development to the community
2006
  • June 1 Ubuntu 6.06 LTS "Dapper Drake", Canonical's first long-term support release, ships
  • August 27 Linux Mint 1.0 "Ada" is released
2007
  • January 22 The Open Source Development Labs and the Free Standards Group merge to form the Linux Foundation
  • June 29 The Free Software Foundation releases GPLv3
  • August 10 A Key Court Ruling in the SCO–Linux Disputes
  • November 5 The Open Handset Alliance announces Android, built on the Linux kernel
2008
  • September 23 The first Android phone, the HTC Dream, is unveiled
2009
  • April 27 Samsung announces its first Android phone
  • July GNOME and KDE hold their first joint Desktop Summit
2010
  • April 30 Lennart Poettering publishes "Rethinking PID 1", introducing systemd
2011
  • March 31 elementary OS 0.1 "Jupiter" is released
  • May 24 Fedora 15 becomes the first major distribution to default to systemd
  • July 21 Linux 3.0 is released, marking the kernel's 20th anniversary
  • August 28 An intrusion into kernel.org's infrastructure is discovered
  • December 20 Cinnamon, a fork of GNOME Shell, has its first release
2014
  • January 7 Red Hat and the CentOS Project join forces
  • February 11 Debian selects systemd as its default init system
2015
  • April 12 Linux 4.0 ships with live kernel patching
2016
  • August 22 The Linux Foundation marks the kernel's 25th anniversary
  • November 16 Microsoft joins the Linux Foundation as a Platinum member
2017
  • May 17 Android reaches 2 billion monthly active devices
  • November 13 Every system on the TOP500 supercomputer list now runs Linux
2019
  • March 3 Linux 5.0 ships
  • July 9 IBM completes its roughly $34 billion acquisition of Red Hat
  • September 24 CentOS Stream is released alongside CentOS 8
2020
  • December 8 CentOS announces it is shifting focus to CentOS Stream
2021
  • March 30 AlmaLinux OS 8.3, a CentOS successor, reaches its first stable release
  • May 18 Android reaches 3 billion active devices
  • June 21 Rocky Linux 8.4 "Green Obsidian", a CentOS successor, reaches its first stable release
2022
  • October 2 Linux 6.0 ships
  • December 11 Linux 6.1 lands the kernel's initial Rust infrastructure
2024
  • February 28 KDE Plasma 6 is released
  • March 29 The XZ Utils supply-chain backdoor, CVE-2024-3094, is disclosed
  • June 30 CentOS Linux reaches its final end of life
2025
  • June 26 Omarchy first release
2026
  • April 12 Linus Torvalds releases Linux 7.0
  • August 14 Omarchy 4.0 "Quattro" releases