2024 02Feb 04
The stage magician Penn Jillette, of Penn & Teller, said in his biography that "Every Day is an Atheist Holiday".
To wit, I'm collecting a calendar of dates that have significance to me. I'll add to it over time. I hope to eventually make every day a tiny personal holiday. (I will still go in to work, but I will know that it's a holiday.)
For brevity, assume all software releases are for Linux or Windows, and all media releases are relative to the USA or North America
| Month | Day | Year | Holiday |
|---|---|---|---|
| Jan | 01 | - | - |
| Jan | 02 | - | - |
| Jan | 03 | - | - |
| Jan | 04 | 2001 | RuneScape |
| Jan | 05 | - | - |
| Jan | 06 | - | - |
| Jan | 07 | - | - |
| Jan | 08 | - | - |
| Jan | 09 | 2014 | CrazyGameNerd speedruns F-Zero GX live at AGDQ |
| Jan | 10 | - | - |
| Jan | 11 | - | - |
| Jan | 12 | - | - |
| Jan | 13 | - | - |
| Jan | 14 | 2003 | SimCity 4 released |
| Jan | 15 | 2001 | Wikipedia launched |
| Jan | 25 | 2018 | Celeste released |
| Jan | 30 | 2007 | Windows Vista released |
| Feb | 01 | 1967 | Surrealistic Pillow, the Jefferson Airplane album, released |
| Feb | 02 | ???? | Groundhog Day |
| Feb | 03 | - | - |
| Feb | 04 | 1977 | Rumours by Fleetwood Mac released |
| Feb | 05 | - | - |
| Feb | 06 | - | - |
| Feb | 07 | 2014 | Dawn of the Brave by Van Canto released |
| Feb | 08 | - | - |
| Feb | 09 | - | - |
| Feb | 10 | - | - |
| Feb | 1 | - | - |
| Feb | 12 | 1993 | Groundhog Day starring Bill Murray |
| Feb | 13 | - | - |
| Feb | 14 | 2006 | Age of Winters by The Sword released |
| Feb | 15 | 2020 | Shame by ContraPoints released |
| Feb | 16 | - | - |
| Feb | 17 | - | - |
| Feb | 18 | - | - |
| Feb | 19 | 1999 | Office Space released |
| Feb | 20 | 1968 | Columbo premieres on NBC |
| Feb | 20 | 2016 | P-1112 Aigaion is destroyed by Garuda Team and their allies |
| Feb | 21 | 2006 | Lua 5.1 released |
| Feb | 22 | 2005 | Gran Turismo 4 released |
| Feb | 23 | - | - |
| Feb | 24 | - | - |
| Feb | 25 | - | - |
| Feb | 26 | - | - |
| Feb | 27 | - | - |
| Feb | 28 | - | - |
| Feb | 29 | - | - |
| Mar | 03 | 2010 | Japan: It's Not Funny Anymore published |
| Mar | 06 | 1990 | An SR-71 set 4 speed records while flying to a museum to become an exhibit |
| Mar | 06 | 2007 | MotorStorm released |
| Mar | 12 | 2021 | The US surpasses 100 million doses of COVID-19 vaccines administered |
| Mar | 21 | 1962 | Taco Bell founded |
| Mar | 22 | 1982 | The Number of the Beast by Iron Maiden released |
| Mar | 22 | 1987 | GCC released |
| Mar | 23 | 2018 | Used Future by The Sword released |
| Mar | 29 | 1995 | Aryx by Karsten Koch published |
| Mar | 31 | 1999 | The Matrix released |
| Apr | 07 | 2005 | Git |
| Apr | 08 | 2024 | Great American Eclipse |
| Apr | 10 | 2019 | M87 "Powehi" photo released |
| Apr | 11 | 1988 | Seventh Son of a Seventh Son by Iron Maiden released |
| Apr | 13 | 1979 | Dawn of the Dead released |
| Apr | 14 | 2003 | Golden Sun: The Lost Age released |
| Apr | 18 | 1980 | Heaven and Hell by Black Sabbath released |
| Apr | 18 | 1998 | Initial D, the anime adaptation, premiered in Japan |
| Apr | 19 | 2013 | Shockwave defeats Grave Digger in a drag race at Nitro Jam (observed) (Video) |
| Apr | 21 | 2015 | Univeral Love, Said The Cactus Person |
| Apr | 26 | 2013 | Ludum Dare 26, the first game jam I ever entered |
| May | 01 | - | - |
| May | 02 | 2013 | Mozilla's Epic Citadel asm.js demo |
| May | 03 | - | - |
| May | 04 | - | - |
| May | 05 | 1998 | Einhander released |
| May | 05 | 2016 | Automatic Ground Collision Avoidance System saves the life of an F-16 pilot during training |
| May | 09 | 2006 | Rise of Nations: Rise of Legends released |
| May | 10 | 1996 | Internet Archive founded |
| May | 10 | 2009 | Redis released |
| May | 11 | 1992 | Fear of the Dark by Iron Maiden released |
| May | 13 | 1998 | Monster Truck Madness 2 released |
| May | 15 | 2015 | Rust 1.0 released |
| May | 15 | 2015 | Mad Max: Fury Road released |
| May | 16 | 1983 | Piece of Mind by Iron Maiden released |
| May | 17 | 2001 | Nintendo reveals Super Smash Bros. Melee at E3 2001 (observed) |
| May | 18 | - | - |
| May | 19 | 2009 | The Git Parable published |
| May | 20 | 1997 | The Colour and the Shape by Foo Fighters released |
| May | 22 | 2001 | Red Faction released |
| May | 28 | 2019 | Unspoken personal significance |
| Jun | 01 | - | - |
| Jun | 02 | - | - |
| Jun | 03 | - | - |
| Jun | 04 | - | - |
| Jun | 05 | - | - |
| Jun | 06 | 1944 | Normandy landings |
| Jun | 07 | 2004 | Once by NightWish released |
| Jun | 08 | - | - |
| Jun | 09 | - | - |
| Jun | 10 | - | - |
| Jun | 11 | 1993 | Jurassic Park premiered |
| Jun | 12 | - | - |
| Jun | 13 | - | - |
| Jun | 14 | - | - |
| Jun | 15 | 2001 | Lara Croft: Tomb Raider, starring Angelina Jolie |
| Jun | 16 | 2023 | PetroDragonic Apocalypse; or, Dawn of Eternal Night: An Annihilation of Planet Earth and the Beginning of Merciless Damnation by King Gizzard and the Lizard Wizard released |
| Jun | 17 | - | - |
| Jun | 18 | 1985 | Dare to Be Stupid by Weird Al released |
| Jun | 18 | 2008 | Firefox 3.0 released |
| Jun | 19 | 1966 | The Ford GT40 takes 1st, 2nd, and 3rd place at 24 Hours of Le Mans, defeating the Ferraris |
| Jun | 19 | 2004 | 99942 Apophis discovered |
| Jun | 20 | - | - |
| Jun | 21 | 1985 | Heart, the Heart album, released |
| Jun | 22 | 2000 | Boku no Natsuyasumi released in Japan |
| Jun | 23 | - | - |
| Jun | 24 | - | - |
| Jun | 25 | 1982 | John Carpenter's The Thing released |
| Jun | 26 | 1948 | The Berlin Airlift began |
| Jun | 26 | 2015 | Obergefell v. Hodges, the US Supreme Court rules in favor of a constitutional right to same-sex marriage |
| Jun | 27 | - | - |
| Jun | 28 | 1999 | Running with Scissors by Weird Al released |
| Jul | 01 | - | - |
| Jul | 02 | 2001 | BitTorrent protocol published |
| Jul | 03 | 1991 | Terminator 2: Judgment Day released |
| Jul | 03 | 1999 | Stonehenge fires on the asteroid Ulysses 1994XF04 |
| Jul | 04 | 1776 | Independence Day |
| Jul | 05 | - | - |
| Jul | 06 | - | - |
| Jul | 07 | - | - |
| Jul | 08 | 2023 | Fissiks tech demo began development |
| Jul | 09 | - | - |
| Jul | 10 | - | - |
| Jul | 11 | 2022 | James Webb Space Telescope ready for scientific operation |
| Jul | 12 | - | - |
| Jul | 13 | 1993 | Chipotle Mexican Grill founded |
| Jul | 15 | 2014 | Mandatory Fun by Weird Al released |
| Jul | 16 | 1988 | Akira released in Japan |
| Jul | 16 | 2010 | Inception released |
| Jul | 17 | 2006 | Mistborn: The Final Empire published |
| Jul | 19 | 1997 | The End of Evangelion released in Japan |
| Jul | 21 | 1969 | Neil Armstrong and Buzz Aldrin of the Apollo 11 mission become the first humans to walk on the surface of the Moon |
| Jul | 21 | 2023 | Barbenheimer released |
| Jul | 22 | 1991 | Silicon Graphics Indigo introduced |
| Jul | 23 | - | - |
| Jul | 24 | - | - |
| Jul | 25 | - | - |
| Jul | 26 | - | - |
| Jul | 27 | - | - |
| Jul | 28 | - | - |
| Jul | 29 | 1991 | POV-Ray released |
| Jul | 30 | 2014 | Meditations on Moloch published |
| Aug | 07 | 2021 | Envy by ContraPoints released |
| Aug | 20 | 1866 | Legal end of the American Civil War |
| Aug | 20 | 1986 | Fore! by Huey Lewis and the News released |
| Aug | 21 | 2017 | Great American Eclipse |
| Aug | 22 | 2001 | some kinda robot, the first Strong Bad Email, released |
| Aug | 23 | - | - |
| Aug | 24 | - | - |
| Aug | 25 | 2003 | F-Zero GX |
| Aug | 26 | - | - |
| Aug | 27 | - | - |
| Aug | 28 | - | - |
| Aug | 29 | 1997 | Skynet becomes self-aware. Anyone not wearing a million SPF sunblock has a real bad day. |
| Sep | ?? | 1975 | Dreamboat Annie, the first album by Heart, released |
| Sep | ?? | 1993 | The September that never ended |
| Sep | 02 | 2007 | V8 JavaScript engine released |
| Sep | 03 | 2020 | Tenet released |
| Sep | 04 | 1995 | Xena: Warrior Princess begins |
| Sep | 05 | - | - |
| Sep | 06 | - | - |
| Sep | 07 | - | - |
| Sep | 08 | 1992 | UTF-8 proposed |
| Sep | 09 | - | - |
| Sep | 10 | - | - |
| Sep | 11 | - | - |
| Sep | 12 | - | - |
| Sep | 13 | 2000 | Second Impact occurs |
| Sep | 14 | 1990 | Painkiller by Judas Priest released |
| Sep | 14 | 2004 | The Sims 2 relased |
| Sep | 15 | 1995 | Hackers released |
| Sep | 16 | 2014 | Brawl in the Family begins its 5-part finale |
| Sep | 20 | 1999 | Dysfunctional Family Circus #500 (Observed) |
| Sep | 24 | 1993 | Myst released for Mac |
| Sep | 25 | 2001 | Ico released |
| Sep | 26 | 1975 | The Rocky Horror Picture Show released |
| Sep | 26 | 1983 | Stanislav Petrov dismisses a false alarm and possibly averts nuclear war between the USA and USSR |
| Sep | 26 | 2006 | Straight Outta Lynwood by Weird Al released |
| Sep | 29 | 1996 | Nintendo 64 released in North America, with launch title Super Mario 64 |
| Sep | 30 | 1991 | Darmok, the Star Trek: TNG episode, premieres |
| Oct | 04 | 1968 | Night of the Living Dead released |
| Oct | 04 | 1985 | Free Software Foundation founded |
| Oct | 04 | 1995 | Neon Genesis Evangelion premiers in Japan |
| Oct | 04 | 2004 | Nginx released |
| Oct | 09 | 2013 | Nightwish announces Floor Jansen as new singer |
| Oct | 10 | 2007 | Team Fortress 2 released |
| Oct | 11 | - | - |
| Oct | 12 | 2019 | Opulence by ContraPoints released |
| Oct | 13 | - | - |
| Oct | 14 | - | - |
| Oct | 15 | - | - |
| Oct | 16 | 2000 | Inuyasha, the anime adaptation, premiers in Japan |
| Oct | 17 | - | - |
| Oct | 18 | 2005 | Shadow of the Colossus released |
| Oct | 20 | 2006 | The Prestige released |
| Oct | 25 | 2001 | Windows XP generally available |
| Oct | 25 | 2004 | Ace Combat 5 released |
| Oct | 26 | 2020 | PTTH's first commit |
| Oct | 28 | 1998 | Trespasser released |
| Nov | 04 | 1997 | Streets of SimCity released |
| Nov | 09 | 2004 | Need For Speed: Underground 2 released |
| Nov | 12 | 2001 | Golden Sun released |
| Nov | 14 | 2010 | The Hrimfaxi submersible aircraft carrier destroyed by Razgriz Squadron |
| Nov | 15 | 2001 | Original XBox released |
| Nov | 16 | 2004 | Half-Life 2 |
| Nov | 17 | 2009 | Left 4 Dead 2 released |
| Nov | 18 | 1995 | Ghost in the Shell the film released in Japan |
| Nov | 18 | 1999 | Lego Rock Raiders released |
| Nov | 18 | 2001 | GameCube released |
| Nov | 20 | 1996 | SimCopter released |
| Nov | 22 | 1999 | Unreal Tournament |
| Nov | 25 | 2006 | Paprika released in Japan |
| Nov | 26 | 2019 | First blood at the newly raised 11' 8" + 8" Can Opener |
| Nov | 30 | 1988 | Ice Cube's good day (observed) |
| Oct | 01 | - | - |
| Oct | 02 | - | - |
| Oct | 03 | 2010 | Wardog Squadron defended Basset Space Center during an SSTO launch |
| Oct | 19 | 1984 | Take On Me (the song) released |
| Oct | 26 | 2000 | PlayStation 2 released |
| Oct | 29 | 1993 | Forest Enter Exit by Deine Lakaien published (uncited) |
| Dec | 01 | - | - |
| Dec | 02 | - | - |
| Dec | 03 | - | - |
| Dec | 04 | 1998 | STS-88, the first crewed flight to the International Space Station, launched (UTC) |
| Dec | 05 | - | - |
| Dec | 06 | - | - |
| Dec | 07 | - | - |
| Dec | 08 | - | - |
| Dec | 09 | 1968 | The Mother of All Demos presented by Douglas Engelbart |
| Dec | 10 | 1993 | Doom released for MS-DOS |
| Dec | 10 | 1997 | Toyota Prius on sale in Japan |
| Dec | 10 | 1999 | Dexter's Laboratory: Ego Trip released |
| Dec | 11 | 2015 | The Tail End published |
| Dec | 14 | 2010 | Braid released for Linux |
| Dec | 18 | 2001 | Final Fantasy X released |
| Dec | 19 | 2001 | The Lord of the Rings: The Fellowship of the Ring released |
| Dec | 19 | 2010 | The Arkbird was destroyed by Razgriz Squadron |
| Dec | 23 | 2020 | Tokio 1.0 released |
| Dec | 28 | 2005 | Inhuman Rampage by DragonForce released |
| Dec | 31 | 1995 | Calvin and Hobbes ends its 10-year run |
| Dec | 31 | 2010 | SOLG destroyed by Razgriz Squadron |