March is the third month of the year in the Gregorian calendar. The following events took place in the month of March:
- 1936 — Construction of the Hoover Dam is completed.
- 1941 — Leonardo José (Brazilian voice of Hound and voice director of Armada) is born.
- 1954 — Peter Spellos (voice of Robots in Disguise 2001 Sky-Byte) is born, receiting a haiku.
- 1961 — Oliver Siebeck (German voice of Ironhide, Barricade, William Fowler, Chase and Ragebyte) is born.
- 1962 — Anders Byström (Swedish voice of Thrust and Nemesis Prime) is born.
- 1966 — Tsutomu Kashiwakura (Japanese voice of Lightfoot and Rabbicrater) is born.
- 1966 — Kerstin Draeger (German voice of Override and Coby Hansen) is born.
- 1967 — British artist Simon Coleby is born.
- 1970 — Meylan Chao (German voice of Su Yueming) is born.
- 1976 — Julien Haggége (German voice of Nightscream) is born.
- 1981 — Kang Si-hyeon (Korean voice of Windblade, Madeline Pynch, Mo Malto and Dot Malto) is born.
- 1999 — The Beast Wars episode "Master Blaster" premieres in the US.
- 2000 — The Beast Machines episode "In Darkest Knight" premieres in Canada on YTV..
- 2000 — The Beast Wars Metals episode "Blaze, Dragon" airs in Japan.
- 2003 — The Armada episode "Detection" premieres in the US.
- 2005 — Barry Stigler (voice of Robots in Disguise 2001 Scourge) dies at age 56.
- 2006 — Japanese toy companies Takara and Tomy officially merge to form TakaraTomy.
- 2008 — The Transformers Animated episode "Lost and Found" premieres in the US.
- 2010 — Final day of the Hasbro Children's Hospital Charity Drive, spawned by the fundraiser to purchase a Hasbro Toy Fair 1986 catalog from eBay. In 7 days, $2340 was raised for the Hasbro Children's Hospital. Wow.
- 2010 — Sebastián Albavera (Mexican voice of Robby Malto) is born.
- 2011 — All JUSCO stores in Japan change their names to AEON.
- 2012 — The Japanese "Early Bird Campaign" kicks off: pre-orders for AM01 Optimus Prime through select venues receive the exclusive Arms Micron Autobot Firebolt. The Campaign ends on March 30th.
- 2013 — The Transformers: Rescue Bots episode "Deep Trouble" premieres in Germany.
- 2013 — The Rescue Bots episodes "Shake Up" premieres in Hungary.
- 2014 — The Rescue Bots episodes "Road Trip" and "Sky Forest" premiere on The Hub.
- 2015 — The Robots in Disguise episode "W.W.O.D.?" premieres on Cartoon Network in Australia.
- 2015 — The Transformers 30th Anniversary Exhibition closes.
- 2017 — The Transformers: Autocracy Trilogy Hardcover is released by IDW Publishing.
- 2021 — The Transformers Collaborative Ultimate X-Spanse figure is released in the US.
- 2025 — First day of Toy Fair 2025, with Transformers: Cyberworld being officially revealed and numerous other Age of the Primes figure reveals.
- 2025 — The Transformers One: New Adventures series finale "Cybertronian Ninja Warrior Aerial Course" premieres on YouTube.
- 1933 — The original King Kong is released.
- 1936 — Silvio Anselmo (Italian voice of Doctor Arkeville, Superion and Warpath in the G1 redub) is born.
- 1945 — Hélio Vaccari (Brazilian voice of Optimus Prime) is born.
- 1954 — Gara Takashima (Japanese voice of Carly and Jessica Morgan) is born.
- 1957 — Marco Balzarotti (Italian voice of Metalhawk, Beast Wars Tigatron, Animated Optimus Prime and the Aligned continuity family Optimus Prime) is born.
- 1959 — Éric Etcheverry (European French voice of Pipes and various other characters in the Five Faces of Darkness episodes of the original cartoon) is born.
- 1967 — Andrea Makay (Hungarian voice of Windblade) is born.
- 1967 — Garcia Júnior (Brazilian voice of Slingshot and Grimlock) is born.
- 1967 — Oleg Stalchuk (Ukranian voice of One Alpha Trion) is born.
- 1969 — Lee Sang-beom (Korean voice of Wheeljack) is born.
- 1981 — Gong Ge'er (Chinese voice of Starscream) is born.
- 1982 — Saumya Daan (Hindi voice of Sam Witwicky) is born.
- 2002 — The 2001 Robots in Disguise cartoon episode "Mistaken Identity" premieres in the US.
- 2007 — The Transformers Collectors' Club members-only site premieres its Mini-Con online bio feature with Bunker-Buster, Knockdown, Nightscream, Offshoot and Strongarm.
- 2008 — The promotional video for the Fun Publications Transformers Collectors' Club exclusive Topspin toy debuts on YouTube.
- 2009 — First day of the ordering period for the "Gentei!" Strafe toy through Transformers Basecamp, exclusive to holders of the Transformers-themed Visa credit cards in Japan.
- 2011 — The Transformers: The IDW Collection Volume Three is released by IDW Publishing.
- 2012 — The Prime episodes "One Shall Rise, Part 1", "One Shall Rise, Part 2" and "One Shall Rise, Part 3" premiere in Germany.
- 2013 — The Rescue Bots episode "Rescue Boy" premiere in Hungary.
- 2015 — Rescue Bots: "Complete Season 1" and "Serve and Protect" are released on DVD by Beyond Home Entertainment in Australia.
- 2015 — The Robots in Disguise series make its series premiere in Portugal with the episode "Pilot (Part 1)".
- 2016 — Transformers Animated The Complete Series is released in Australia by Madman Entertainment.
- 2019 — The Rescue Bots Academy episodes "Go Team, Go!" and "About A Rock" premiere on Discovery Family.
- 2019 — The Cyberverse episodes "Awaken Sleeping Giants" and "Eruption" premieres in Hungary.
- 2022 — Beast Wars #13 and Transformers: Best of Megatron are released by IDW Publishing.
- ???? — Ivette González (Latin-American Spanish voice of Daniel Witwicky in The Headmasters) is born.
- 1923 — Sound editor Joseph Sorokin is born.
- 1955 — Gérard Rouzier (second French voice of Animated Bulkhead, Blitzwing, Omega Supreme and also Alpha Trion) is born.
- 1956 — Vilmos Papucsek (Hungarian voice of Megatron/Galvatron, Primus, Skyblast, Crumplezone, Sweet Cheat, Vomit Comet and more) is born.
- 1967 — Hanho Shin (Korean voice of Jetfire, Menasor, Undermine and Lugnutz) is born.
- 1973 — Matthew Marsden (SASF Agent Graham in Revenge of the Fallen) is born.
- 1977 — Masafumi Kimura (voice of Road Storm, Megalo Convoy and Dino Shout in Galaxy Force and Japanese voice of The Fallen, Terrashock, Polarclaw and Nitro Zeus) is born.
- 1978 — Ruggero Andreozzi (Italian voice of Robots in Disguise (2015) Sideswipe) is born.
- 1979 — Jon Bailey (voice of Soundwave and more) is born with an Epic voice.
- 1984 — Kanako Tōjō (Japanese voice of Mikaela Banes) is born.
- 1986 — Actor Renan Freitas (Brazilian Portuguese voice of Baby Face and Lucas Flannery in the live-action film series) is born.
- 1991 — The Super-God Masterforce episode "Rescue Squeezeplay!" premieres in Malaysia.
- 1998 — Jesús Brock (Latin-American Spanish voice of Soundwave in The Headmasters) passes away at age 45.
- 1999 — The Beast Wars Neo episode "Mirage of the Sand" premieres in Japan.
- 2007 — Marek Obertyn (Polish voice of Landmine, Mirage and Crumplezone) dies at age 54.
- 2008 — The promotional video for the Fun Publications Transformers Collectors' Club-exclusive Topspin toy is added to the Club website.
- 2012 — The Transformers Prime episode "Orion Pax, Part 3" and Transformers: Rescue Bots episode "Flobsters on Parade" premiere on The Hub.
- 2013 — The Rescue Bots episodes "It's a Bot Time" premieres in Hungary.
- 2015 — The Q-Transformers" episode "Mystery of Game Balance" first premieres.
- 2017 — The Nintendo Switch console is released worldwide.
- 2017 — Travis Knight is appointed the director of Bumblebee.
- 2018 — Transformers: The Last Knight was nominated for ten Razzies, but does not win any.
- 2020 — Writer David Wise passes away.
- 2021 — Transformers: Beast Wars #2, Transformers '84: Legends & Rumors 100-Page Giant, and Transformers '84: Secrets & Lies TPB are released by IDW Publishing.
- 2023 — 8 episodes of Transformers: EarthSpark, "Hashtag: Oops" to "Home, Part 2", premiere on Paramount+ in the United States.
- 2023 — The Transformers: EarthSpark episodes "Age of Evolution, Part 1 and "Age of Evolution, Part 2" premieres on Nickelodeon.
- 2023 — The Transformers: EarthSpark episode "House Rules" premieres on YTV in Canada.
- 2024 — The Transformers: EarthSpark episode "Have a Blast on the Internet!" premieres in Japan.
- 1948 — Announcer Brian Cummings is born.
- 1963 — Daniel Roebuck (voice of Malodor on Robots in Disguise) is born.
- 1967 — Musician Hideaki Takatori is born.
- 1979 — Gabriel Ortiz (Mexican voice of Skid-Z) is born.
- 1986 — Hiram Cárdenas (Mexican voice of Chaos) is born.
- 1988 — The Headmasters episode "The Zarak Shield Turns the Tide" premieres in Japan.
- 1998 — The Beast Wars episode "Fare Thee Well, Tigatron" premieres in Japan.
- 2007 — Mathéo Savard-Piccinin (Canadian French voice of Otis Watson) is born.
- 2009 — Best of UK: City of Fear #2, Best of UK: Time Wars TPB and Defiance #2 are released by IDW Publishing.
- 2010 — Cyber Missions 3 debuts.
- 2011 — The Transformers: Prime episode "Convoy" premieres on The Hub.
- 2011 — The Optimus Prime Elite Guard Version toy, the mail-away exclusive from the Japanese Transformers Animated Great Encyclopedia book, is shipped out.
- 2011 — The Macrocosmic Seekers chapter "A Treasure's True Worth" is e-mailed to e-HOBBY subscribers.
- 2013 — Transformers: Rescue Bots premieres in Latin America on Discovery Kids.
- 2013 — The Transformers: Rescue Bots episode "Return of the Dino Bot" premieres in Germany.
- 2013 — The Rescue Bots episode "Bot to the Future" premieres in Hungary.
- 2015 — The Transformers vol. 2 #38, More than Meets the Eye #38, The Complete AllSpark Almanac TPB and the Primacy TPB are released by IDW Publishing.
- 2015 — The Robots in Disguise episode "Trust Exercises" premieres in Portugal.
- 2020 — Galaxies #5 and Transformers/Ghostbusters: Ghosts of Cybertron TPB are released by IDW Publishing. Transformers: The Definitive G1 Collection Volume 89: Realignments is released by Hachette Publishing.
- 2021 — Paramount+ is launched.
- 2021 — The Transformers Collaborative Ultimate X-Spanse figure is released in New Zealand.
- 2023 — At the 2023 Nickelodeon Kids Choice Awards, Optimus Prime was given a Lifetime Achievement Award, presented to him by his Transformers: Rise of the Beasts co-stars Anthony Ramos, Dominique Fishback, and Pete Davidson.
- 2023 — 8 episodes of Transformers: EarthSpark, "Hashtag: Oops" to "Home, Part 2", premieres in Brazil.
- 2023 — The Transformers: EarthSpark episode "Hashtag: Oops" premieres in Germany.
- 2025 — On this Transformers Tuesday, preorders for the second Age of the Primes deluxe wave and Wreck 'n Doom Collection Carnivac vs. Fisitron (w/ Decepticon Survivor) go up.
- 2026 — TakaraTomy uploads the "Business Trip! Wild King Research Institute - Episode 5 -" to YouTube.
- 1933 — Willy Schäfer (German Generation 2 voice of Skywarp, Warpath, Cyclonus and others) is born.
- 1937 — Guy de La Berg (Swedish voice of Tidal Wave, Brakedown, Dirt Boss, and Mike Franklin) is born.
- 1949 — Composer Katsunori Ishida is born.
- 1950 — Hirotaka Suzuoki (Japanese voice of Fight! Super Robot Lifeform Transformers Starscream, Powerglide, Slingshot and Devcon) is born.
- 1950 — Al Milgrom is born.
- 1957 — Eddie Deezen (voice of Ped) is born.
- 1964 — Benoît Van Dorslaer (French voice of Boulder) is born.
- 1964 — Comic colorist Nestor Pereyra is born in San Miguel de Tucumán, Argentina.
- 1964 — Hajime Komada (voice of Bazooka) is born In America!
- 1980 — Comic inker Crystal Reid (usually credited as M3th) is born near Toronto, Canada.
- 1980 — Ryan Nicolls (voice of Volcanicus and Dirge) is born.
- 1983 — Luise Helm (German voice of Mikaela Banes) is born.
- 1985 — Illustrator Sara Pitre-Durocher is born.
- 1987 — The Fight! Super Robot Lifeform Transformers 2010 episode "Fight or Death!?" airs in Japan.
- 1994 — Yūki Shin (Japanese voice of Cog in Transformers: War for Cybertron Trilogy) is born.
- 2001 — Marianna Alexandre (Brazilian voice of Spitfire) is born.
- 2004 — The Energon episode "Megatron Resurrected" premieres in the US.
- 2007 — The 48th show in the Kiss Players radio drama series airs in Japan on the "Transformers Kiss Play: Transformers News Center" program.
- 2010 — Revenge of the Fallen is awarded three Razzies for Worst Director, Worst Screenplay, and Worst Film.
- 2010 — Jakub Rutkowski (Polish voice of Robby Malto) is born.
- 2011 — Kan Tokumaru (voice of Germain) passes away at age 69.
- 2012 — Transformers: Prime Season One is released in the US on DVD and Blu-ray by Shout! Studios.
- 2013 — More than Meets the Eye #14 and The Transformers: Spotlight: Bumblebee are released by IDW Publishing.
- 2013 — The Transformers: Rescue Bots episode "The Reign of Morocco" premieres in Germany.
- 2014 — Transformers Cloud: Spacetime World: Guardians of Time Chapter 2: Part 2 is first published.
- 2015 — The Robots in Disguise episode "W.W.O.D.?" premieres in Brazil.
- 2019 — Transformers: The Definitive G1 Collection Volume 47: International Incident is released by Hachette Partworks.
- 2020 — The Transformers: Cyberverse episodes "Battle For Cybertron I" through "Battle For Cybertron IV" premieres on the Cartoon Network app.
- 2021 — The Rescue Bots Academy episodes "The Empty City and "First Responder" premieres in the United States.
- 2023 — 8 episodes of Transformers: EarthSpark, "Hashtag: Oops" to "Home, Part 2", premieres in Italy.
- 2024 — Void Rivals #7 is released by Image Comics and Skybound Entertainment.
- 2024 — Rooster Teeth announced that they will be shutting down all operations.
- 1941 — Helmut Winkelmann (German voice of Vehicon) is born.
- 1945 — Raymond Bouchard (Canadian French voice of Ratchet in the live-action film series) is born.
- 1946 — Bert Franzke (German voice of The Fallen) is born.
- 1959 — Leopoldo Ballesteros (Castilian Spanish voice of many versions of Starscream, Shockblast, Clocker and Dirt Boss) is born.
- 1962 — Voice actor John Nelson is born.
- 1962 — Olga Hnidey (Mexican voice of Blackarachnia) is born.
- 1973 — Eiji Takemoto (voice of Dirge/Dirgegun, Bump, J-7, Art Fire and Doctor Akashi) is born.
- 1974 — Krizz Kaliko (voice of War for Cybertron Trilogy Dinobot) is born.
- 1984 — Bartosz Martyna (Polish voice of Cliffjumper, Wildbreak and Jawbreaker) is born.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "The Secret of Omega Supreme" premieres in Japan.
- 1989 — "You Too Use the Masterforce to Transform", a Super-God Masterforce clipshow, premieres in Japan.
- 1993 — The Headmasters episode "The Last Battle on Earth, Part 1" airs in Malaysia.
- 2002 — Ana Helena de Freitas (Brazilian voice of Izabella) is born.
- 2003 — The Legends of the Microns episode "廃墟 (わな) - confrontation" premieres in Japan.
- 2004 — The art/reference book Legends of the Microns Year Book 2003 is released in Japan by JIVE.
- 2007 — Generations #12 and Movie Prequel #1 are released by IDW Publishing.
- 2009 — The Transformers Animated episode "SUV: Society of Ultimate Villainy" premieres in Italy.
- 2013 — The Transformers: Rescue Bots episode "Flobsters on Parade" premieres in Brazil.
- 2013 — The Transformers: Rescue Bots episode "Small Blessings" premieres in Germany.
- 2015 — The Robots in Disguise episode "As the Kospego Commands!" premieres on Cartoon Network in Australia.
- 2015 — The Robots in Disguise series make its televised series premiere in Italy with the episodes "Pilot (Part 1)" and "Pilot (Part 2)".
- 2015 — The Rescue Bots episode "The Attack of Humungado" premieres on Discovery Family.
- 2015 — Shinji Ogawa (voice of Rhodan) dies at age 74 from a bronchiolitis obliterans organizing pneumonia.
- 2018 — Scarlett's Strike Force #3 is released by IDW Publishing.
- 2018 — Transformers: The Definitive G1 Collection: Volume 71: All Hail Optimus is released by Hachette Partworks.
- 2023 — On this Transformers Tuesday, Hasbro officially reveals the Studio Series Gamer Edition Bumblebee, Barricade and Optimus Prime and pre-orders for them go up.
- 2024 — Hasbro Pulse hosts a Transformers 40th Anniversary Fanstream officially revealing the Target exclusive Studio Series Blaster & Eject.
- 2024 — TakaraTomy officially reveals the Studio Series Starscream.
- 2024 — Walmart.com officially reveals the Star Raider Collection.
- 2025 — The Transformers HasLab Legacy Liokaiser campaign reaches 16,000 backers, unlocking the second stretch goal tier: Liokaiser's Electromagnetic Nunchaku.
- 2025 — José Sant'anna (Brazilian voice of Starscream in the The Transformers, Armada and the live-action film series) dies at the age of 83.
- 2026 — The Cyberworld episode "Oh Crate, This Again" premieres on YouTube.
- 1957 — Singer Mitsuko Horie is born.
- 1969 — Jean-Philippe Lejeune (French voice of Sky-Byte and Sawtooth in the Cyberverse cartoon) is born.
- 1975 — Zhao Zhen (Chinese voice of Skids and Wheelie) is born.
- 1977 — Chilean voice actor René Pinochet is born.
- 1980 — Kazuyuki Okitsu (voice of Kenzan and Japanese voice of Smokescreen and Scrapface) is born with the Sunlight Yellow Overdrive.
- 1984 — Angélica Villa (Mexican voice of Su Yueming, Cyberwarp and Judgement) is born.
- 1987 — Actor and musician Tobe Nwigwe (Reek in Rise of the Beasts) is born.
- 1991 — Yūichirō Umehara (Japanese voice of Breakdown) is born.
- 2000 — The Beast Machines episode "A Wolf in the Fold" premieres in Canada on YTV.
- 2000 — The Beast Wars Metals episode "I Hath Returned!" airs in Japan.
- 2003 — The Transformers: The Movie is released on DVD in the UK by Sony Wonder and Maverick Entertainment.
- 2003 — The Armada episode "Awakening" premieres in the US.
- 2006 — G.I. Joe vs. the Transformers: The Art of War issue 1 is released in the US by Devil's Due Press.
- 2006 — Infiltration issue 3 is released in the US by IDW Publishing.
- 2008 — The Transformers Animated episode "Survival of the Fittest" premieres in the US.
- 2012 — Hasbro reveals the five fan-nominated finalists for the 2012 Transformers Hall of Fame: Arcee, Beast Wars Megatron, Rodimus, Wheeljack, and Sky-Byte.
- 2013 — The Transformers: Rescue Bots episode "The Alien Invasion of Griffin Rock" premieres in Brazil.
- 2014 — The Rescue Bots episode "One for the Ages" premieres on the Hub Network.
- 2015 — The Robots in Disguise episode "Collect 'Em All" premieres on Cartoon Network in Australia.
- 2017 — Revolution: Heroes TPB, Revolution: Transformers TPB and Transformers Annual 2017 are released by IDW Publishing.
- 2017 — Transformers: The Definitive G1 Collection: Volume 37: Escalation is released by Hachette Partworks.
- 2019 — The Bumblebee Cafe opens for a limited time in Ikebukuro Station, Tokyo.
- 2023 — TakaraTomy officially reveals the Beast Wars: Super Lifeform Transformers Again BWVS-01 Eternal Beast Showdown: Convoy VS Megatron and the Canon/Transformers Nemesis Prime and pre-orders go up for them.
- 2024 — Designer Andy Couzens passes away at 70.
- 2024 — Angelo Nicotra (Italian voice of Generation 1 Galvatron, Blaster, Ratchet, General Whalen and more) also passes away at age 75.
- 2025 — Crazy Bump Co., Ltd. opens a Transformers pop up shop in Oioi at the Marui Family Ebina to commemorate the debut of the Transformers Epos Card.
- 2025 — Transformers One is released on HBO Max in Asia.
- ???? — Jason Konopisos-Alvarez (voice of Shockwave in Transformers One) is born.
- 1959 — Writer and story editor Akira Okeya is born.
- 1962 — Yōhei Tadano (Japanese voice of Mudflap, Chop Shop, Hot Rod and Soundblaster) is born.
- 1965 — Iara Riça (Brazilian voice of Nancy and Alice) is born.
- 1966 — Anders Öjebo (Swedish voice of Armada Demolishor, High Wire, Energon Cyclonus, Tidal Wave, Rodimus, Cybertron Sideways and Evac) is born.
- 1969 — Junichi Endō (voice of Transformers Super Link Galvatron and Carlos Lopez) is born.
- 1971 — Jon Hamm (voice of Sentinel Prime in Transformers One) is born.
- 1975 — Dublin James (the voice of Hot Shot in the Armada PS2 game) is born.
- 1979 — Danny Pudi (voice of Bumblebee and Smart Trainer in Transformers: EarthSpark) is born. Cool. Cool. Cool.
- 1991 — The Super-God Masterforce episode "Battle at the Base" premieres in Malaysia.
- 1992 — The Transformers: The Movie - Original Motion Picture Soundtrack is re-released on CD in the US by Scotti Bros. Records.
- 1998 — The Beast Wars episode "Transmutate" premieres in the US during a special "Toonami" week-long event on Cartoon Network.
- 1999 — The Beast Wars Neo episode "Dinosaur Combiner Magmatron" premieres in Japan.
- 1999 — The Japanese Transformers — Decepticon Edition Laserdisc set is released by Pioneer LDC.
- 2004 — Dreamwave releases More than Meets the Eye: Transformers: Armada, volume 1.
- 2010 — Bumblebee #4 and Best of UK: Prey TPB are released by IDW Publishing.
- 2011 — Nickelodeon.com launches its Dark of the Moon "16 Weeks of Cyber Sweeps" contest website.
- 2012 — The Transformers Prime episode "Operation Bumblebee, Part 1" and Transformers: Rescue Bots episode "The Alien Invasion of Griffin Rock" premiere on The Hub.
- 2014 — The second BotCon 2014 box set exclusive Ferak is revealed.
- 2015 — The Q-Transformers" episode "Mystery of the Lowest Possible Standards" first premieres.
- 2015 — The Robots in Disguise episode "Collect 'Em All" premieres in Brazil.
- 2016 — The Angry Birds Transformers "Enter the Silverbird" competition begins, allowing players to unlock Silver/Windblade Bird as a playable character.
- 2020 — Transformers: The Manga Volume 1 is released by Viz Media.
- 2020 — Frank-Otto Schenk (German voice of Ron Witwicky) dies at age 76.
- 2020 — Ednaldo Lucena (Brazilian voice of Crosswise) also dies at age 82.
- 2021 — Hasbro Pulse opens its doors to United Kingdom market.
- 2023 — The Transformers: EarthSpark episode "Classified" premieres on YTV in Canada.
- 2023 — A Transformers: Rise of the Beasts panel is held at SXSW 2023 with Steven Caple Jr., Anthony Ramos, Pete Davidson, Dominique Fishback, Tobe Nwigwe and Lorenzo di Bonaventura in attendance.
- 2023 — First day of the Transformers Rise Of The Beasts Optimus Prime & Optimus Primal World Tour at SXSW 2023 in Austin, Texas.
- 2023 — 8 episodes of Transformers: EarthSpark, "Hashtag: Oops" to "Home, Part 2", premieres on Paramount+ in Latin America.
- 2023 —The Transformers: EarthSpark episode "Home, Part 1" premieres in Germany.
- 2024 — The Transformers: EarthSpark episode "Let’s Search For Pictures!" premieres in Japan.
- 2026 — On this Transformers Tuesday, preorders for the Studio Series Titan Class Grimlock go up.
- 1944 — Lutz Mackensy (German voice of Joshua Joyce and Merlin) is born.
- 1956 — Rob Paulsen (voice of Generation 1 Air Raid, Slingshot and others) is born in the United States, not Canada, Mexico, Panama, Haiti, Jamaica, Peru....
- 1956 — Óscar Gómez (Mexican voice of Morshower, Joshua Joyce and Merlin) is also born.
- 1963 — Alex Kingston (voice of Rescue Bots Quickshadow) is born.
- 1963 — Jesús Barreda (Castilian Spanish voice of Hot Shot in the Armada PS2 game and Bumblebee in the War for Cybertron videogame) is born.
- 1970 — Cathlen Gawlich (German voice of Blackarachnia in War for Cybertron Trilogy) is born.
- 1976 — Jeong Seon-hye (Korean voice of Strongarm) is born.
- 1982 — Robbie Daymond (voice of Rescue Bots Myles and Evan) is born with a Tuxedo.
- 1988 — The Headmasters episode "Operation: Destroy the Decepticons" premieres in Japan.
- 1998 — The Beast Wars episode "They're Coming" premieres in Japan.
- 1998 — The Beast Wars episode "The Agenda (Part 1)" premieres in the US during a special "Toonami" week-long event on Cartoon Network.
- 2002 — Transformers: Generation 2 is released on DVD in the UK by Sony Wonder and Maverick Entertainment.
- 2006 — The Cybertron episode "Critical" premieres in the US.
- 2008 — "Transformers — Box-Set (2DVDs)" is released in Germany by Flex Media.
- 2009 — All Hail Megatron #8 is released by IDW Publishing.
- 2009 — The Transformers — Volume 06: Stagione Due Parte Quarta is released on DVD in Italy by Medianetwork Communication.
- 2011 — The Transformers: Prime episode "Deus ex Machina" premieres on The Hub.
- 2011 — The Macrocosmic Seekers chapter "Journey to the Future" is e-mailed to e-HOBBY subscribers.
- 2012 — The first day of Cybertron Con 2012 at Resorts World Sentosa in Singapore.
- 2014 — The Transformers Armada: The Complete Series DVD set is released in the US by Shout! Factory.
- 2015 — The Robots in Disguise episode "Trust Exercises" premieres in Italy.
- 2015 — The Robots in Disguise episode "True Colors" premieres in Portugal.
- 2020 — Transformers #18 is released by IDW Publishing.
- 2023 — The Transformers: EarthSpark episode "Home, Part 2" premieres in Germany.
- 2025 — The Transformers: EarthSpark episode "Judgment Day, Part 1" premieres in Indonesia.
- 2025 — On this Transformers Tuesday, preorders for reissues of Legacy Evolution Nacelle and Nova Prime go up.
- 2025 — Clive Revill (voice of Generation 1 Kickback) passes away at age 94.
- 2026 — Transformers #30 is released by Image Comics and Skybound Entertainment.
- 2026 — TakaraTomy uploads the "Business Trip! Wild King Research Institute - Episode 6 -" to YouTube.
- ???? — Masamichi Kitada (Japanese voice of Denny Clay and Santos) is born.
- 1946 — Frank Welker (voice of The Transformers Megatron, Soundwave, and Galvatron, Prime Megatron and Soundwave, and about a billion other characters in Generation 1, Movieverse, and Alligned media) is born.
- 1946 — Gérard Surugue (European French voice of Wheelie in the live-action film series) is born.
- 1955 — Masumi Gotō (Japanese voice of Firestar, Season 3 Daniel Witwicky, and others) is born.
- 1956 — Andreas Hosang (German voice of Obsidian and Raddus) is born.
- 1961 — Actor Titus Welliver (James Savoy in Age of Extinction) is born.
- 1962 — Marvel Comics artist Graham Nolan is born.
- 1970 — René García (Mexican voice of X-Brawn) is born.
- 1981 — Chiwa Saitō (Japanese voice of Twitch) is born.
- 1982 — Starscream is caught on camera in Laos. Transformers
- 1983 — Do-hyeong Nam (Korean voice of Knock Out, Raf Esquivel, Dreadwing and Skyquake) is born.
- 1993 — Leslie Gil (Mexican voice of Chromia) is born.
- 1998 — The Beast Wars episodes "The Agenda (Part 2)" and "The Agenda (Part 3)" premiere in the US during a special "Toonami" week-long event on Cartoon Network.
- 2003 — The War Within #6 is released by Dreamwave Productions.
- 2003 — The Transformers: The Movie is released on DVD in Australia by Madman Entertainment.
- 2005 — The Galaxy Force episode "Vector Prime's Decision" premieres in Japan.
- 2008 — Vera Miranda (Brazilian voice of Botanica) passes away.
- 2009 — Animated — Volume Zwei: Die Alten Waffen is released on DVD in Germany by Paramount Pictures.
- 2009 — TakaraTomy releases Henkei! Henkei! C-16 Dinobot and C-17 Cybertron Hot Rod (w/ Jolt).
- 2009 — Henkei! Henkei! volume 11 is first released.
- 2012 — The second day of Cybertron Con 2012 at Resorts World Sentosa in Singapore.
- 2012 — The Prime episode "Rock Bottom" premieres in Brazil.
- 2014 — More than Meets the Eye #27 (Dark Cybertron #10) and The Transformers #1: One Hundred Penny Press Edition are released by IDW Publishing.
- 2015 — Rising was supposedly scheduled for release in the United States and United Kingdom for Android and iPhone devices. However, it was a case of poor communication. What was released was a special edition of the English version of the app in China, Hong Kong, and Taiwan (the regions where the game was already released). And lo, many Westerners were PISSED.
- 2015 — The Robots in Disguise episode "Beyond Appearances" premieres in Italy.
- 2015 — The Robots in Disguise episode "Rumble in the Jungle" premieres in Portugal.
- 2016 — The Robots in Disguise episode "Suspended" premieres on Cartoon Network.
- 2025 — Transformers #18 and Void Rivals #17 are released by Image Comics and Skybound Entertainment.
- 2025 — The EarthSpark episode "Judgment Day, Part 2" premieres in Indonesia.
- 1966 — Mario Filio (Latin-American Spanish voice of Trent DeMarco and William Fowler) is born.
- 1976 — Jérémie Covillault (French voice of Sky Lynx in the War for Cybertron Trilogy and European French voice of Scourge in Rise of the Beasts) is born.
- 1982 — Wataru Hatano (voice of Robotmasters Optimus Prime) is born.
- 1983 — Jesús Nunes (Latin-American Spanish voice of Blurr and Bud Hansen) is born.
- 1987 — Martina Felli (Italian voice of Arcee in Rise of the Beasts) is born.
- 1987 — The Fight! Super Robot Lifeform Transformers 2010 episode "Starscream's Revival" airs in Japan.
- 1989 — Chisato Mori (Japanese voice of Sierra) is born.
- 1993 — Krzysztof Rogucki (Polish voice of Swindle) is born.
- 1994 — Kento Nakajima (Japanese voice of Noah Díaz) is born.
- 2007 — The 49th show in the Kiss Players radio drama series airs in Japan on the "Transformers Kiss Play: Transformers News Center" program.
- 2008 — "Gone Too Far" is released through the Fun Publications Transformers Collectors' Club members-only site.
- 2008 — Henkei! Henkei! volume 1 is first published.
- 2008 — Japanese Toys"R"Us stores offer the exclusive Skyglide Micron with the purchase of any Henkei! product.
- 2008 — Melissa Hernández (Mexican voice of Mo Malto) is born.
- 2008 — TakaraTomy releases the first wave of the Henkei! Henkei! Transformers line consisting of C-01 Convoy, C-02 Bumble, C-03 Grimlock, C-04 Ligier, D-01 Megatron and D-02 Starscream.
- 2012 — Third day of Cybertron Con 2012 at Resorts World Sentosa in Singapore.
- 2013 — Francis Lax (European French voice of Optimus Prime, Bumblebee, Ironhide and many others in the original cartoon) passes away at age 82, following a long fight against an illness.
- 2013 — Regeneration One #89 and Monstrosity #2 (digital edition) are released by IDW Publishing.
- 2014 — Transformers Cloud: Spacetime World: Guardians of Time Chapter 2: Part 3 is first published.
- 2015 — The Robots in Disguise episode "Can You Dig It?" premieres in Brazil.
- 2019 — Transformers #1 is released by IDW Publishing.
- 2020 — The Transformers: Cyberverse episode "The Loop" and "The Dead End" premiere on the Cartoon Network app.
- 2021 — The Rescue Bots Academy episodes "How To Train Your Scraplet" and "Helicopter Heroes" premieres in the US.
- 2023 — IGN publishes an article officially revealing the Buzzworthy Bumblebee Jungle Mission 3-Packs Cheetor, Nightbird, and Wheeljack, Airazor, Bumblebee, and Autobot Mirage and the Beast Weaponizers Predacon Scorponok with Sandspear.
- 2023 — Pluto TV Canada launches the Transformers TV channel.
- 2023 — The Transformers: EarthSpark episode "Hashtag: Oops" premieres on Nickelodeon in the UK.
- 2023 — Walmart and Hasbro Pulse put the first three toys in the Legacy Toxitron Collection up for preorder: Toxitron, Cloudcover, and Jazz.
- 2024 — Transformers #6 is released by Image Comics and Skybound Entertainment.
- 2024 — IGN.com officially reveals the Target Optimus Prime and Bullseye.
- 2024 — The Super Groupies x Transformers Collaboration is announced and preorders go up starting now until April 1, 2024.
- 2025 — Walmart Collector Con begins and preorders go up for the Age of the Primes Excellion and Sideways.
- 2025 — Target puts up preorders for a reissue of the Legacy: Evolution Autobot Devcon.
- ???? — Hayato Fujii (voice of Skyreport) is born.
- 1929 — José Santa Cruz (Brazilian voice of Generation 1 Megatron, Armada Megatron and movie Megatron) is born in João Pessoa.
- 1942 — Gilberto Baroli (Brazilian voice of Soundwave, Violência and Tracks) is born.
- 1966 — Gary Anthony Williams (voice of Slicedice on Robots in Disguise) is born.
- 1967 — Achille D'Aniello (Italian voice of two Thrusts, Skyblast and Barricade) is born.
- 1968 — Júlio Monjardim (Brazilian voice of Thunderhoof, Springload and Refraktor) is born.
- 1970 — Gianluca Iacono (Italian voice of Quickstrike, Prowl, Starscream, Scourge and more) is born.
- 1971 — Yasuyuki Kase (Japanese voice of Cybertron Red Alert and Brimstone) is born.
- 1979 — Wang Kai (Chinese voice of Optimus Prime) is born.
- 1979 — Artist Marcelo Matere is born.
- 1983 — Ferso Velázquez (Latin-American Spanish radio voice of Bumblebee in the live-action film series and real voice of Bumblebee in Rescue Bots) is born.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "Monacus, the Planet of Gambling" premieres in Japan.
- 1986 — Francisco Júnior (Brazilian voice of Aerobolt and Shadelock) is born.
- 1989 — The Victory cartoon premieres in Japan with the episode "The Brave Hero of the Universe - Star Saber".
- 1991 — Thaís Dutra (Brazilian voice of Twitch) is born.
- 1993 — The Headmasters episode "The Last Battle on Earth, Part 2" airs in Malaysia.
- 1997 — André Filho (Brazillain voice of Windcharger, Greene, Rocksteady and more) dies at age 50.
- 2001 — Transformers: Car Robots—Vol. 9 is released on DVD in Japan by Pony Canyon.
- 2001 — Transformers: Car Robots — Vol. 7 and Transformers: Car Robots — Vol. 8 are released on VHS in Japan by Pony Canyon.
- 2003 — The Legends of the Microns episode "迷路 (ちか) - underground" premieres in Japan.
- 2007 — The Gathering Manga is released by IDW Publishing.
- 2009 — The Animated triple-length third season opening episode "TransWarped" premieres in the United States. Canada, however, gets only the first two parts.
- 2009 — The Henkei! Henkei! Transformers manga chapter "Optimus Prime's Secret" is serialized in Japan in Comic BunBun's April 2009 issue.
- 2009 — The Transformers Animated episode "Autoboot Camp" premieres in Italy.
- 2011 — Hasbro officially announces a Transformers online game for the English-speaking bits of the world co-developed with Jagex Games Studio, to be released sometime in 2012. (It wasn't.)
- 2011 — Transformers: Armada — Superbox is released in Germany by New KSM.
- 2012 — The Transformers: More than Meets the Eye #3 and The Transformers Volume 7: Chaos are released by IDW Publishing. Autocracy #5 is also released digitally.
- 2012 — The last day of Cybertron Con 2012 at Resorts World Sentosa in Singapore.
- 2013 — Transformers: Rescue Bots episode "Walk on the Wild Side" premieres in Brazil.
- 2015 — The Robots in Disguise episodes "Pilot (Part 1)" and "Pilot (Part 2)" premiere on Cartoon Network in the US, three weeks after their English premiere in Australia.
- 2015 — The Robots in Disguise episode "True Colors" premieres on Cartoon Network in Australia.
- 2015 — The Rescue Bots episode "All Bots Great and Small" premieres on Discovery Family.
- 2016 — "High Noon" is released by Fun Publications.
- 2018 — Rom vs. Transformers: Shining Armor TPB, Lost Light #16 and The Transformers: Redemption of the Dinobots TPB are released by IDW Publishing.
- 2022 — e-HOBBY releases the second wave of Transformers Character Card.
- 2023 — The Transformers: EarthSpark episode "Outtakes" premieres on Nickelodeon in the UK.
- 2024 — Final day to preorder the Threezero MDLX Skywarp.
- 2024 — Final day of the HasLab Transformers: Legacy Robots in Disguise 2001 Omega Prime with Blue Bolts campaign which begins on January 30.
- 2024 — Hasbro Pulse hosts a Transformers 40th Anniversary Fanstream and Preorders for the Star Raider Collection and also the Target Optimus Prime and Bullseye go up.
- 2026 — Threezero reveals their MDLX Toxitron
- 1942 — Sílvio Navas (Brazilian voice of the Narrator, Razorclaw, Kup and numerous other in The Transformers) is born.
- 1946 — Guy Chapellier (European French voice of John F. Kennedy in Dark of the Moon and Zeta Prime) is born.
- 1948 — Yūji Mikimoto (voice of Pointblank, Diver and Black Shadow) is born.
- 1948 — Yūsaku Yara (voice of Dai Atlas) is born.
- 1952 — Musician Enzo Draghi is born.
- 1954 — Bob Budiansky, the man responsible for basically creating Transformers as a fiction, is born.
- 1963 — Enrico Pallini (Italian voice of Tidal Wave/Mirage, Neil Armstrong and War for Cybertron Trilogy Skywarp) is born.
- 1966 — Actor Cas Anvar (Egyptian Interpol Officer #1 in Revenge of the Fallen) is born.
- 1981 — Bruno Azevedo (Brazilian voice of Astrotrain) is born.
- 1983 — To control the previous year's leaks about N.B.E.'s to the public, S7 Industries collaborates with Japanese toymaker Takara to produce a movie based on the "video game" about the giant robots they were developing. Sector Seven ARG
- 1992 — Victoria Frenz (German voice of Charlie Watson) is born.
- 2000 — The Beast Machines episode "Home Soil" premieres in Canada on YTV.
- 2000 — The Beast Wars Metals episode "Ka-Boom!" airs in Japan.
- 2001 — The Beast Wars II cartoon premieres in South Korea with the episode "The New Forces Arrive!".
- 2003 — The Armada episode "Desperate" premieres in the United States.
- 2004 — The War Within Vol. 1 is published in Japan by JIVE Ltd.
- 2005 — "Intense Race Planet! Speedia" is serialized by Comic BomBom in their April 2005 issue.
- 2006 — Transformers, Beast Wars: The Gathering #2 is released by IDW Publishing.
- 2006 — Beast Wars—Season 1 is released on DVD in Australia by Madman Entertainment.
- 2008 — The Transformers Animated episode "Headmaster" premieres in the US.
- 2009 — Beware the Ides of March! The Bookworm Virus crashes the TFWiki.net database. 3/15 NEVAR FORGET!!!
- 2011 — The Hasbro Transformers toy website updates with the "Mechtech 3D Toy Viewer", revealing one new Dark of the Moon MechTech toy a week, meant to be viewed through the 3D glasses that come with Cyberverse "Limited Edition Preview" Optimus Prime.
- 2013 — The Transformers: Prime episodes "Darkmount, NV", "Scattered", and "Prey" premiere in Singapore on Okto.
- 2013 — Regine Albrecht (voice of Strika in the German dub of Beast Machines) passes away.
- 2013 — "The Time Machine" is first published by Eaglemoss/GE Fabbri in Russia.
- 2014 — The Rescue Bots episode "Tip of the Iceberg" premieres on Hub Network.
- 2015 — The Robots in Disguise episode "Rumble in the Jungle" premieres on Cartoon Network in Australia.
- 2015 — The Robots in Disguise series make its series premiere in Japan with the episode "Pilot (Part 1)".
- 2017 — G.I. Joe #3 and Revolutionaries #3 are released by IDW Publishing.
- 2019 — Masterpiece MP-10ASL Convoy (atmos safari LEBRON Ver.) is released through Japanese Atmos stores.
- 2019 — The Transformers Classics Vol.1 Encounter is published by Hero-X.
- 2020 — The Transformers: Cyberverse episodes "Battle For Cybertron I" through "Battle For Cybertron IV" premieres in the United States.
- 2023 — First day of the Rise of the Beasts Optimus Prime & Optimus Primal World Tour in São Paulo, Brazil.
- 2023 — Transformers Go! Go! #22 is published.
- 2023 — The Transformers: EarthSpark episode "Missed Connection" premieres on Nickelodeon in the UK.
- 2024 — TakaraTomy releases the third wave of the EarthSpark toyline.
- 19?? — Kenichi Mochizuki (voice of Autolander, Autovolt, Blendar and others) is born.
- 1952 — Alvin Sanders (voice of Demolishor in the Unicron Trilogy) is born.
- 1962 — Márcio Simões (Brazilian voice of Hot Rod/Rodimus Prime, Swoop, Hightower, Tidal Wave, Jetfire and more) is born.
- 1971 — Actor Alan Tudyk (Dutch in Dark of the Moon and voice of Optimus Prime in EarthSpark) is born with a sudden inevitable betrayal.
- 1971 — David Nathan (German voice of Colan) is born.
- 1976 — Kenji Nojima (Japanese voice of Wasp and voice of M121 Mason and Kotarō Fūma) is born.
- 1976 — Géraldine Frippiat (French voice of Dani Burns) is born.
- 1976 — Ricardo Campos (Brazilian voice of Meteorfire) is born.
- 1977 — Massimo Di Benedetto (Italian voice of Airazor and Wildbreak) is born.
- 1982 — Romina Marroquín Payró (Mexican voice of Jillian Robinson) is born.
- 2002 — The 2001 Robots in Disguise cartoon episode "Galvatron's Revenge" premieres in the US.
- 2005 — Super Link—Volume 011 is released on DVD in Japan by Interchannel.
- 2007 — The Transformers Collectors' Club members-only site releases online bios for the Mini-Cons Aftershock, Breakage, Heavy Metal, Jumpstart, Kickflip, and Mudbath.
- 2009 — Final day to register for the Fun Publications Fan Club and receive the Heatwave subscription bonus toy.
- 2010 — Final day to register for the Fan Club and get the 2010 promo toys Dion and Cop-Tur.
- 2011 — Transformers: Foundation #2 is released by IDW Publishing.
- 2011 — Final day to register for the Fan Club and get the 2011 promo toy Side Burn.
- 2012 — The original final day to register for the Fan Club and get the 2012 promo toy Runamuck; it was later moved to March 21.
- 2013 — The Super Robot Lifeform Transformers: Prime episode "Blackest Transformation! The Shadow of Treachery" premieres in Japan.
- 2015 — "Head Games" is released by Fun Publications.
- 2015 — The Robots in Disguise episode "As the Kospego Commands!" premieres in Italy.
- 2015 — The Robots in Disguise series make its series premiere in Hungary with the episode "Pilot (Part 1)".
- 2015 — The Robots in Disguise episode "Adventures in Bumblebee-Sitting!" premieres in Brazil.
- 2016 — The Transformers vol.2 Volume 8 TPB and issue #51 and the Transformers: Deviations one shot are released by IDW Publishing.
- 2019 — The Rescue Bots Academy episodes "The Secret of Flight" and "Battle of the Bots" premiere on Discovery Family.
- 2019 — Larry DiTillio (writer and story editor on Beast Wars) passes away.
- 2023 — Hasbro and Walmart reveal the first three toys in the Toxitron Collection, a Walmart exclusive capsule for Legacy: Evolution: G2 Universe Toxitron, G2 Universe Cloudcover, and G2 Universe Autobot Jazz.
- 2023 — First day of the Rise of the Beasts Optimus Prime & Optimus Primal World Tour in Singapore.
- 2023 — The Transformers: EarthSpark episode "Security Protocols" premieres on Nickelodeon in the UK.
- 2024 — First day of Monro's "Optimize Your Ride" promotional tie in campaign with the 40th anniversary of the Transformers.
- ???? — Salvador Chantrés García (Mexican voice of Scorponok) is born.
- 1954 — Imre Józsa (Hungarian voice of Cyclonus/Snow Cat and Skids) is born.
- 1967 — Taitem Kusunoki (Japanese voice of Car Robots Black Convoy, Galaxy Force Galaxy Convoy, live-action movie Jazz, Jack Burns and more) is born.
- 1968 — Shinichirō Miki (Japanese voice of Beast Wars Inferno and Razor-Fin) is born.
- 1979 — Actor Jareb Dauplaise (the shorter frat guy in Revenge of the Fallen) is born. We checked.
- 1979 — Rajesh Kava (Hindi voice of Bumblebee in Bumblebee) is born.
- 1980 — Actress Sophia Myles (Darcy Tirrel in Age of Extinction) is born.
- 1981 — Jaime Collepardo (Mexican voice of Aftermath and Ironhide) is born.
- 1988 — The Headmasters episode "My Friend Sixshot!" premieres in Japan.
- 1998 — The Beast Wars episode "The Great King of Terror Appears!" premieres in Japan.
- 2004 — Takara releases Super Link SC-10 Rodimus Convoy, SC-11 Red Alert, and SD-09 Command Jaguar Gentei Desert Type.
- 2004 — Multiple Japanese store chains offer exclusive energon weapons as promotional gifts with Super Link toy purchases: the "Natural Green Energy Axe", "Violet Cluster Energy Axe", "Lightning Yellow Energy Spear", and "Rodeo Magenta Energy Spear".
- 2004 — Artist Michel Koiter dies at the age of 19.
- 2006 — The Cybertron episode "Assault" premieres in the US.
- 2007 — The Tokyo Toy Festival begins. The Sparkbots set (Angela, Star Dust and Zangetsu) is made available exclusively at TakaraTomy's booth, plus Kiss Players Picture Story Show is performed live on-stage.
- 2009 — Defiance #3 is released by IDW Publishing.
- 2011 — The Macrocosmic Seekers chapter "Macrocosmic Seekers" is e-mailed to e-HOBBY subscribers.
- 2014 — The Transformers: Rescue Bots: "Heroes on the Scene" compilation DVD is released in the US by Shout! Factory.
- 2015 — The Transformers vol. 2 #39 — Combiner Wars Opening Salvo, Angry Birds Transformers #4 and the All Hail Megatron HC (Red Label) are released by IDW Publishing.
- 2015 — The Robots in Disguise episode "Sideways" premieres in Brazil.
- 2015 — The Robots in Disguise episode "Trust Exercises" premieres in Hungary and Poland.
- 2015 — The Robots in Disguise episode "True Colors" premieres in Italy.
- 2020 — Transformers #19 is released by IDW Publishing.
- 2020 — Transformers: The Definitive G1 Collection Volume 82: Revolutionaries is released by Hachette Publishing.
- 2023 — Joscha Fischer-Antze (German voice of Vector Prime) dies at age 79.
- 2025 — TakaraTomy officially reveals the Transformers: Wild King line and series.
- 2025 — The Transformers HasLab Legacy Liokaiser campaign reaches 18,000 backers, unlocking the third and final stretch goal tier: Liokaiser's Display stands.
- 2025 — Yōko Kawanami (voice of Arcee in the Japanese dub of The Transformers: The Movie and "The Headmasters") passes away at age 67.
- 2026 — G.I. Joe #20 and G.I. Joe Volume 3: Dreadnok War TPB are released by Image Comics and Skybound Entertainment.
- 2026 — TakaraTomy uploads the "Business Trip! Wild King Research Institute - Episode 7 -" to YouTube.
- 1941 — Carmen Sheila (Brazilian voice of the original The Transformers cartoon Arcee) is born.
- 1941 — Tommi Piper (German voice of ALF) is born.
- 1957 — British writer Dave Morris is born.
- 1962 — Composer Motoyoshi Iwasaki ("Marionette" from Car Robots) is born.
- 1962 — Monster Maezuka (voice of Sling) is born.
- 1976 — Yong-wu Sin (Korean voice of Bumblebee, Jazz, Coby Hansen, Crumplezone, Wing Saber and Signal Lancer) is born.
- 1984 — Klayton Alegre (Brazilian voice of Laserbeak) is born.
- 1989 — Actor Byron Li (Kung Fu fighter in Age of Extinction) is born.
- 1999 — Beast Warriors' Strongest Decisive Battle is released for Game Boy Color.
- 2003 — Armada #9 is released by Dreamwave Productions.
- 2003 — Transformers: Legacy of Unicron TPB is released by Titan Books.
- 2005 — The Galaxy Force episode "Demon Beast Planet Animatros" premieres in Japan.
- 2005 — The United States achieves closure on the Energon cartoon when "Spark" and "The Sun" premiere back-to-back. With this long national nightmare finally behind them, healing can begin.
- 2006 — Director Brad Case dies in Medford, Oregon.
- 2012 — The Prime episode "Partners" premieres in Brazil.
- 2013 — TakaraTomy opens their Kre-O Transformers website.
- 2013 — The Rescue Bots episode "Four Bots and a Baby" premieres in Brazil.
- 2014 — Animated — Season Two is released in Australia by Madman Entertainment.
- 2014 — Regeneration One #100, Robots in Disguise #27 (Dark Cybertron Chapter 11), Beast Hunters Volume 2 TPB are released by IDW Publishing.
- 2015 — The Robots in Disguise episode "More than Meets the Eye" premieres in Poland.
- 2015 — The Robots in Disguise episode "Rumble in the Jungle" premieres in Italy.
- 2016 — TakaraTomy releases Masterpiece MP-11NR Ramjet, Adventure TAV38 Thunderhoof and TAV39 Quillfire and Q-Transformers QTFS-02 Decepticons 3-Figure Set and QTF-09 Ratchet.
- 2016 — The final day of the Angry Birds Transformers "Enter the Silverbird" competition, allowing players to unlock Silver/Windblade Bird as a playable character.
- 2016 — The Robots in Disguise episode "Cover Me" premieres on Cartoon Network.
- 2018 — David Bischoff (author of "Lonesome Diesel") dies at age 67.
- 2019 — Bumblebee is released for digital purchase.
- 2019 — Transformers: Cyberverse - Intégrale Saison 1 is released by ESC Éditions.
- 2020 — Rino Bolognesi (Italian voice of Dark of the Moon Roadbuster) dies at age 87.
- 2024 — e-HOBBY releases the eleventh wave of Transformers Character Card.
- 2025 — G.I. Joe #5 is released by Image Comics and Skybound Entertainment.
- 2026 — At Walmart Collector Con, preorders for Star Eagle and Breakaway go up.
- ???? — Ditter Ruiz (Mexican voice of Thrust) is born.
- ???? — Kairi Satake (Japanese voice of Glowstrike) is born.
- 19?? — Marvel Comics letterer Diana Albers is born.
- 1949 — Till Hagen (German voice of The Scientist) is born.
- 1959 — Frank Muth (German voice of Ironhide, Springer, Roadbuster, Farnum and more) is born.
- 1960 — Pascal Massix (first European French voice of Ironhide and Barricade in the live-action film series) is born.
- 1961 — Louis Chirillo (voice of Cybertron Ransack) is born.
- 1961 — Isabel Martiñón (Mexican substitute voice of Carl) is born.
- 1970 — Andrew Kishino (voice of Transformers The Game Jazz, Bobby Bolivia and also Breakaway) is born.
- 1970 — Ward Perry (voice of Scavenger and Landmine) is born.
- 1972 — Jonathan Lipow (voice of Unicron in the Transformers: War for Cybertron Trilogy) is born.
- 1975 — Manuel Campuzano (Mexican voice of Thundercracker in the Transformers: War for Cybertron Trilogy and Soundblaster) is born.
- 1985 — Fan Zhechen (Chinese voice of The Last Knight William Lennox) is born.
- 1987 — The Fight! Super Robot Lifeform Transformers 2010 episode "Planet of the Spider Nests" premiers in Japan.
- 1989 — Actor and director Xavier Dolan (Canadian French voice of Noah Díaz) is born.
- 1989 — Japanese voice actress Asuna Tomari is born.
- 2003 — Japanese Toys"R"Us stores offer the Land Military Micron Ultimate Edition toys (Bomb, Crack, and Shot), one free with the purchase of Legend of the Microns MC-01 Convoy Super Mode.
- 2007 — The 50th show in the Kiss Players radio drama series airs in Japan on the "Transformers Kiss Play: Transformers News Center" program.
- 2010 — Disney Label Donald Duck Monochrome is released in Japan.
- 2010 — Generation 1-colored EZ Collection Devastator is released in Japan.
- 2012 — The Transformers: Prime: Music from the Animated Series: Season One albulm is released by Lakeshore Records.
- 2013 — More than Meets the Eye #15 and the Transformers: Fall of Cybertron #1 are released by IDW Publishing
- 2013 — TakaraTomy releases Kre-O Transformers in Japan, starting with six sets: Bumblebee, Optimus Prime, Rotor Rage, Stealth Bumblebee, Street Showdown and Battle for Energon.
- 2013 — Transformers Prime — Stagione 1 Vol. 3: La furia dei Decepticons and Transformers Prime — Stagione 1 Vol. 4: Improbabili alleanze are released to home media in Italy by Universal Pictures IT.
- 2014 — Transformers Cloud: Spacetime World: Guardians of Time Chapter 2: Part 4 is first published.
- 2015 — The Robots in Disguise episode "Can You Dig It?" premieres in Italy.
- 2015 — The Robots in Disguise episode "W.W.O.D.?" premieres in Hungary and Poland.
- 2018 — Hans-Jürgen Wolf (German voice of Megatron in the live-action film series and another Megatron in Transformers: Prime) passes away, aged 68.
- 2019 — Bumblebee's First Life on Earth #1 is released.
- 2019 — Transformers: The Definitive G1 Collection Volume 05: The Smelting Pool is released by Hachette Partworks.
- 2021 — The Rescue Bots Academy episodes "Brushfire" and "The Ties That Bind" premieres in the United States.
- 2023 — The Transformers: EarthSpark episode "Bear Necessities" premieres on Nickelodeon in the UK.
- 2023 — Writer Michael Reaves dies at age 72.
- 2024 — Cobra Commander #3 is released by Image Comics and Skybound Entertainment.
- 2025 — Preorders for the Target exclusive SS86 Autobot Perceptor/Ratbat/Ramhorn multipack go up.
- 1926 — Henry Djanik (European French voice of Megatron, Brawn, Prowl and Omega Supreme in the original cartoon) is born.
- 1931 — Comic artist Al Williamson is born.
- 1953 — Run Sasaki (Japanese voice of Astoria Carlton-Ritz, Moonracer, Alana, Elise Presser and Michelle) is born.
- 1951 — Carlos Roberto (Brazilian voice of Alexi Voskhod) is born.
- 1962 — Taco Bell is founded.
- 1965 — Miyako Endō (voice of Jan Minakaze from Fight! Super Robot Lifeform Transformers: Victory) is born.
- 1965 — Ja-hyeong Gu (Korean voice of Prime Megatron, Shockwave and Wheeljack) is born.
- 1966 — Samay Raj Thakkar (Hindi voice of Robert Epps, Dropkick, and War for Cybertron Trilogy Starscream) is born.
- 1968 — Jonny Rees (Second voice of Thaddeus Morocco in Rescue Bots) is about to make a fur coat out of you.
- 1970 — Lee Yong-sun (Korean voice of T-AI) is born.
- 1983 — Jakub Wieczorek (Polish voice of Shockwave and Scorponok) is born.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "From Your Daughter With Love" premieres in Japan.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "The Golden Lagoon" premieres in Japan, but only in the Kansai region.
- 1998 — Beast Wars: Super Lifeform Transformers — Floating Island Deathmatch and The Destrons Make Drama are released on VHS in Japan by Pioneer LDC.
- 1998 — The Beast Wars: Transformers Maximal Edition Laserdisc set is released in Japan by Pioneer LDC.
- 2003 — The Transformers: Super-God Masterforce DVD BOX 01 is released in Japan by Pioneer LDC.
- 2003 — The Legends of the Microns—The Transformers Legends of the Microns: Sound of Evolution Vol. 1 soundtrack album is released in Japan by Columbia Music Entertainment.
- 2003 — The Legends of the Microns episode "記憶 (みやこ) - ruin" premieres in Japan.
- 2007 — "Spotlight: Soundwave" and Movie Prequel #2 are released by IDW Publishing.
- 2009 — The Animated episode "Three's a Crowd" premieres in the US while "TransWarped" Part 3 premieres in Canada.
- 2009 — The Transformers Animated episode "Black Friday" premieres in Italy.
- 2011 — Registration for BotCon 2011 goes live. Over 50% of the box set run is purchased within four hours.
- 2012 — The Transformers Classics UK Volume 2, and the second printings of More than Meets the Eye #2 and Robots in Disguise #2 are released by IDW Publishing.
- 2012 — The final day to register for the Fan Club and get the 2012 promo toy Runamuck.
- 2012 — The final day to vote for the fans' choice character inductee of the 2012 Transformers Hall of Fame ceremony.
- 2013 — The Transformers: Rescue Bots episode "Christmas in July" premieres in Brazil.
- 2015 — The Robots in Disguise episode "Can You Dig It?" premieres on Cartoon Network in Australia.
- 2015 — The Rescue Bots episode "Time After Time" premieres on Discovery Family.
- 2015 — Transformers: Robots in Disguise makes its Canadian television broadcast premiere on Teletoon.
- 2015 — TakaraTomy releases Masterpiece MP-23 Exhaust and MP-24 Star Saber, Cloud TFC-A04 Roadbuster and TFC-D04 Hellwarp, and Q-Transformers QT-15 Hound and QT-16 Bluestreak.
- 2015 — The Transformers Cloud Compilation Comic is released.
- 2016 — The Robots in Disguise episodes "Suspended" and "Metal Meltdown" premieres in Italy.
- 2018 — The IDW Collection Phase Two: Volume 7 Hardcover is released by IDW Publishing.
- 2018 — Transformers: The Definitive G1 Collection: Volume 2: New Order is released by Hachette Partworks.
- 2020 — The Rescue Bots Academy episodes "Back To School" and "Mission Dinobot" premiere on Discovery Family.
- 2023 — Comic book artist Joe Giella passes away at age 94.
- 2023 — The Transformers: EarthSpark episode "Warzone" premieres on Nickelodeon in the UK.
- 2024 — Hasbro Pulse hosts a Transformers 40th Anniversary Fanstream officially revealing the 2nd wave of Legacy: United and pre-orders go up, pre-orders also go up for the Origins Wheeljack.
- 2026 — The Cyberworld episode "Pride Before the Fall" premieres on YouTube.
- 1927 — Director Charlie Downs is born.
- 1933 — Carlos Marques (Brazilian voice of Bombshell, Auggie Cahnay, Slapper and others) is born.
- 1943 — Roberto Colmenares (Latin-American Spanish voice of Omega Supreme) is born.
- 1947 — Tony Pope (voice of the original The Transformers cartoon Wreck-Gar, A-3 and Inquirata) is born.
- 1950 — Makoto Kōsaka (voice of Pipiro) is born.
- 1951 — Antoine Tomé (French voice of Brawl in Transformers The Game, and Bulkhead and Shockwave in Transformers Animated: The Game) is born.
- 1957 — Pierre-Peters Arnold (German voice of Armada Optimus Prime and Micronus Prime) is born.
- 1959 — Comic writer and artist Lew Stringer is born.
- 1961 — Longtime Transformers scribe Simon Furman is born. His parents wouldn't believe the things he could do now.
- 1962 — Francesco Quinn (voice of Dino/Mirage in Dark of the Moon) is born in Italy.
- 1969 — Novelist Alex Irvine is born.
- 1970 — Paweł Iwanicki (Polish voice of Ironhide, Rad White and Scattorshot) is born.
- 1971 — Keegan-Michael Key (voice of B-127 in Transformers One) is born.
- 1972 — Dado Monteiro (Brazilian voice of Bumblebee, Ultra Magnus and Micronus) is born.
- 1976 — Rosalba Sotelo (Mexican voice of Prime Arcee) is born.
- 1981 — Tino Kießling (German voice of Scowl) is born.
- 1987 — Chinese musician GAI is born.
- 1991 — Actress Dominique Fishback (Elena Wallace in Transformers: Rise of the Beasts) is born.
- 2000 — The Beast Machines episode "Sparkwar Pt. I: The Strike" premieres in Canada on YTV..
- 2000 — The Beast Wars Metals episode "Happy? This Should do it" airs in Japan.
- 2002 —Transformers: Primal Scream TPB is released by Titan Books.
- 2002 — Bia Telles (Brazilian voice of Izzy and Mischa) is born.
- 2003 — The Armada episode "Runaway" premieres in the US.
- 2006 — Generations #1 is released by IDW Publishing.
- 2007 — TakaraTomy releases the first wave of the Transformers: Beast Wars Telemocha Series line consisting of TM-01 Convoy, TM-02 Megatron, TM-03 Cheetus, TM-04 Waspeeter, TM-05 Dinobot, TM-06 Blackwidow, TM-07 Colada and TM-08 Archadis.
- 2008 — The Transformers Animated episode "Nature Calls" premieres in the US.
- 2010 — Fun Publications reveals the first toy in the BotCon 2010 exclusive box set: Autobot Spark.
- 2012 — "Megatron's Revenge" is uploaded to the Transformers YouTube page.
- 2013 — The Transformers: Prime episode "Darkmount, NV" premieres in the United States.
- 2014 — The Rescue Bots episode "Spellbound" premieres on Hub Network.
- 2015 — Optimus Prime publicly meets with the Secretary General of the United Nations to ratify the Cybercord Treaty between Earth and Cybertron. Alpha Quintesson's Terrorcons attack Toronto, Moscow, Tokyo and Los Angeles. Multiplicity
- 2015 — The Robots in Disguise episode "Pilot (Part 2)" premieres in Japan.
- 2015 — The Robots in Disguise episode "Adventures in Bumblebee-Sitting!" premieres on Cartoon Network in Australia.
- 2017 — Transformers vs. G.I. Joe: The Movie Adaptation and Optimus Prime #5 are released by IDW Publishing.
- 2017 — Transformers: The Definitive G1 Collection: Volume 8: Wanted: Galvatron — Dead or Alive is released by Hachette Partworks.
- 2019 — The Bumblebee movie is released in Japan.
- 2020 — The Transformers: Cyberverse episodes "The Loop" and "The Dead End" premiere in the U.S..
- 2022 — On this Transformers Tuesday, Hasbro reveals the Vintage Beast Wars Maximal Cybershark and Wolfang.
- 2022 — Giovanni Battezzato (Italian voice of Road King, Denny Clay, Thermidor and Doctor Morocco) dies at age 71.
- 2023 — The Transformers: EarthSpark episode "Home, Part 1" premieres on Nickelodeon in the UK.
- 1934 — Ted Schwartz (intial voice of Rodimus Prime and voice of Tailgate) is born.
- 1946 — Gabriel Chávez (Mexican voice of Armorhide) is born.
- 1949 — Aruno Tahara (Japanese voice of War for Cybertron Trilogy Sky Lynx) is born.
- 1954 — Hideyuki Hori (voice of Generation 1 Chromedome in The Headmasters) is born.
- 1956 — Gerald Paradies (German voice of Tankor, Ultra Magnus, Omega Supreme, Starscream, Boulder and Groundpounder) is born.
- 1959 — Kazue Ikura (voice of Manjimaru Sengoku) is born.
- 1964 — Actor Peter Lorre dies at age 59.
- 1967 — Santos Alberto (Mexican voice of Canopy, Shockwave and War for Cybertron Trilogy Omega Supreme) is born.
- 1968 — Writer Zak Penn is born.
- 1973 — Federico Di Pofi (Italian voice of Perceptor, Soundwave and Tracks in the re-dub of The Transformers) is born.
- 1987 — Writer and artist Daniel Warren Johnson is born.
- 1994 — Sebastian Kluckert (German voice of Cyberverse Hot Rod and Sideswipe in Transformers: War for Cybertron Trilogy) is born.
- 1998 — Thay Marciano (Brazilian voice of Nova Storm) is born.
- 2001 — The Transformers DVD BOX 2 is released in Japan by Pioneer LDC.
- 2002 — The series finale of Robots in Disguise (2001), "The Final Battle", premieres in the US.
- 2004 — Beast Wars—The Complete Second Season is released on DVD in the US by Rhino Entertainment.
- 2007 — The Transformers Collectors' Club members-only site releases online bios for the Mini-Cons Barnstorm, Buildup, Dead End Drone/Dead End General, Drop-Test, Flashbang, and the Matrix Cannon.
- 2011 — Heart of Darkness #1 and reprintings of The Transformers: The IDW Collection Volume One and Two are released by IDW Publishing.
- 2013 — TakaraTomy releases Generations TG13 Soundwave with Laserbeak, TG14 Soundblaster with Buzzsaw, and Masterpiece MP-16 Frenzy & Buzzsaw.
- 2013 — The Fight Super Robot LifeformTransformers: Prime episode "Resurrection Transformation! The Reviving of Planet Cybertron" premieres in Japan.
- 2014 — TakaraTomy releases Masterpiece MP-13B Soundblaster with Ratbat and Generations TG-32 Mini-Con Assault Team and TG-33 Armada Starscream.
- 2015 — Transformers Prime — The Complete Season 2 is released to home media in the United Kingdom by Primal Screen.
- 2015 — The Robots in Disguise episode "As the Kospego Commands!" premieres in Hungary and Poland.
- 2015 — The Robots in Disguise episode "Adventures in Bumblebee-Sitting!" premieres in Italy.
- 2018? — A mall is struck by energon lightning, turning hundreds of everyday objects into mischievous little robots. BotBots Official Digital Commercial
- 2019 — The Rescue Bots Academy episodes "Screen Time" and "Fright At The Museum" premiere on Discovery Family.
- 2019 — TakaraTomy releases Studio Series SS-23 Rusty Bumblebee, SS-24 Bonecrusher, SS-25 Optimus Prime, SS-26 Jetfire, SS-27 Megatron and SS-28 Dropkick.
- 2021 — Anne Kerylen (European French voice of Elita One and one of the voices of Marissa Faireborn and Jessica Morgan) passes away at age 77.
- 2022 — Transformers #41, Beast Wars #14 and The Transformers: Beast Wars Volume 1 are released by IDW Publishing.
- 2023 — The Transformers: EarthSpark episode "Home, Part 2" premieres on Nickelodeon in the UK.
- 1905 — Jules Verne, famous French science fiction author, dies at age 77.
- 1951 — Marlin Wick (German voice of Blitzwing) is born.
- 1956 — Ken Yamaguchi (Japanese voice actor for Blurr, Slugslinger, Hydra and a great many others) is born.
- 1959 — Matthias Klages (German voice of Sky-Byte and more) is born.
- 1965 — Actor Peter Jacobson (Mr. Hosney in Transformers) is born.
- 1966 — Serge Biavan (European French voice of Leadfoot and Crosshairs in the live-action films and also Galvatron in the War for Cybertron Trilogy) is born.
- 1970 — Comedian Hiroyuki Amano (Hiroyuki Otoboto in the Japanese version of Animated) is born.
- 1971 — Actress Megyn Price (Amber in Bumblebee) is born.
- 1991 — The Super-God Masterforce episode "The New Being Has Come Alive" premieres in Malaysia.
- 1999 — The Beast Wars Neo episode "The Black Hole Crisis" premieres in Japan.
- 1999 — Ljubiša Bačić (voice of Starscream in the Serbian dub of original The Transformers cartoon) passes away.
- 2000 — The Beast Wars: Metals DVD BOX 1 is released in Japan by Pioneer LDC.
- 2003 — Universal/Right releases Transformers: Armada—Vol: 01 on VHS and DVD in the UK.
- 2004 — Dreamwave's Generation One issue "Skyfire" is released in the US.
- 2005 — Takara releases the second figure in The Transformers: Masterpiece line: MP-2 Ultra Magnus.
- 2005 — Takara also releases the Robot Masters RM-22 Lio Convoy and RM-23 Lio Convoy + DVD.
- 2006 — Galaxy Force—Vol. 10 is released on DVD in Japan by Victor Entertainment.
- 2006 — The Beast Wars Reborn text story, "Master of the Game", is published in issue no. 98 of Figure Ō magazine in Japan.
- 2010 — Last Stand of the Wreckers #3 is released by IDW Publishing.
- 2012 — The Transformers Prime episode "Loose Cannons" premieres on The Hub.
- 2014 — The third BotCon 2014 box set exclusive Devcon is revealed.
- 2015 — The Q-Transformers" episode "Mystery of Mystery of Convoy" first premieres.
- 2015 — The Robots in Disguise episode "Collect 'Em All" premieres in Hungary
- 2018 — TakaraTomy releases Encore God Fire Convoy, Movie the Best MB-16 Jetfire, MB-17 Optimus Prime Revenge Version, MB-18 War Hammer Bumblebee, MB-19 Hound and MB-20 Nemesis Prime, and Legends LG-64 Seaspray & Lione, LG65 Targetmaster Twin Twist (with Spoil) and LG66 Targetmaster Topspin (with Peaceman).
- 2023 — The Transformers: EarthSpark episode "Friends and Family" premieres on YTV in Canada.
- 2024 — The Transformers: EarthSpark episode "Hatsumedaisuki Nightshade" premieres in Japan.
- 2025 — The final day to back the HasLab Legacy Liokaiser campaign, with a final count of 23,553 backers.
- 2026 — Hasbro officially reveals the Transformers Icons Optimus Prime (Autobot Symbol) and preorders go up for it.
- 1937 — Hidekatsu Shibata (voice of Devil Z) is born.
- 1939 — Writer D. C. Fontana is born.
- 1947 — Musician Elton John is born.
- 1968 — Michael Reisz (voice of the 2001 Robots in Disguise cartoon Wedge and Landfill) is born.
- 1968 — Carla Pompílio (Brazilian voice of Strika) is also born.
- 1970 — Director Kenji Nakamura is born.
- 1972 — César Beltrán (Mexican voice of Starscream and Sky-Byte) is born.
- 1973 — Massimiliano Alto (Wreck-Gar in the second Italian dub of The Transformers: The Movie) is born.
- 1973 — Erwin Grünspan (French voice of Beast Machines Optimus Primal, Aligned Optimus Prime and Cyberverse Optimus Prime) is born.
- 1980 — Rodrigo Oliveira (Brazillian voice of Trent DeMarco, Hot Rod and War for Cybertron Trilogy Starscream) is born.
- 1988 — The Headmasters episodes "Duel on the Asteroid" and "The Final Showdown on Earth (Part 1)" premiere in Japan.
- 1998 — The Beast Wars episode "To Protect the Peace..." premieres in Japan.
- 1999 — Beast Wars II—ACT. 12 is released on VHS in Japan by Pioneer LDC.
- 2000 — Beast Wars: Metals—Groooww Bigger and Rrray! are released on VHS in Japan by Pioneer LDC.
- 2002 — bitstep is founded.
- 2004 — Takara releases Super Link SC-12 Signal Flare, SC-13 SL Grand Convoy, SC-14 Kicker, and the SL Grand Convoy & Kicker set.
- 2004 — JUSCO stores offer the Violet Cluster Energy Axe with the purchase of Super Link SL Grand Convoy.
- 2004 — Transformers Generations Deluxe is published in Japan by Million Publishing.
- 2004 — Writer Katherine Lawrence dies at age 49.
- 2005 — Beast Wars Returns—Volume 5 is released in Japan by Geneon Entertainment.
- 2005 — The Transformers: Last Stand TPB is released by Titan Books.
- 2006 — The Cybertron episode "Starscream" premieres in the US.
- 2006 — The 15 Go! Go! chapter "Extra Volume?!" is published in the May 2006 issue of Dengeki Hobby.
- 2007 — The 15 Go! Go! chapter "Sparkbots Volume 4" is published in the May 2007 issue of Dengeki Hobby.
- 2008 — The Super-God Masterforce series is released on DVD in New Zealand by Madman Entertainment.
- 2008 — Aveo Swerve is made available on the Chevrolet website... through branches in Switzerland and the United Arab Emirates. The offer is quickly taken down.
- 2009 — All Hail Megatron #9, Alliance #4, and the Beast Wars Omnibus are released by IDW Publishing.
- 2011 — The Transformers: Animated volume 8 DVD is released by Paramount Japan.
- 2014 — MMO game Smite is first launched.
- 2015 — The Transformers: Windblade: Combiner Wars #1 is released by IDW Publishing.
- 2015 — Geneon Universal Entertainment releases two separate Transformers Victory DVDs.
- 2015 — The Robots in Disguise episode "Sideways" premieres in Italy.
- 2015 — The Robots in Disguise episode "True Colors" premieres in Hungary and Poland.
- 2017 — TakaraTomy releases Movie The Best MB-09 Dino Ride Grimlock & Optimus Prime, MB-10 Dino Ride Strafe & Bumblebee and MB-11 Movie 10th Anniversary Optimus Prime.
- 2017 — Artist Dave Hunt dies at age 74.
- 2019 — Michael Brennicke (German voice of the Narrator in Armada) dies at age 69.
- 2020 — Galaxies #6 and Transformers vs. The Terminator #1 are released by IDW Publishing.
- 2020 — TakaraTomy releases Masterpiece MP-38+ Burning Convoy.
- 2022 — Transformers: BotBots premieres on Netflix.
- 2023 — TakaraTomy releases Masterpiece MP-53+B Dia Burnout, Legacy TL-21 Megatron, TL-22 Hot Shot, TL-23 Needlenose, TL-24 Decepticon Breakdown, TL-25 Leo Prime and TL-26 Tarn and Studio Series SS-98 Autobot Wheelie, SS-99 Ratchet and SS-100 Fallen.
- 2023 — Animator Leo D. Sullivan passes away.
- 2024 — New Zealand MINT reveals their Transformers 40 Anniversary Silver Coins and go up for pre-order.
- 2025 — Transformers Go! Go! Wild King web special #1 is published.
- 2026 — Void Rivals #28 is released by Image Comics and Skybound Entertainment.
- 2026 — TakaraTomy uploads the "Business Trip! Wild King Research Institute - Episode 8 -" to YouTube.
- 19?? — Illustrator Richard Chang is born.
- 1931 — Leonard Nimoy (voice of Galvatron in The Transformers: The Movie and Sentinel Prime in Dark of the Moon) begins his long and prosperous life.
- 1940 — Monique Thierry (European French voice of Joan, Nimue and Talaria) is born.
- 1943 — Byeong-gwan Kim (Korean voice of Gigatron, Dolrailer, Build Typhoon and Wars) is born.
- 1946 — Gabriel Pingarrón (Mexican voice of The Fallen, Edmund Burton, Sharp and Admiral Brigham) is born.
- 1952 — Bodo Henkel (German voice of Omega Supreme) is born.
- 1953 — Japanese illustrator Yuji Kaida is born.
- 1954 — Kazuhiko Inoue (Japanese voice of Micronus and War for Cybertron Trilogy Ultra Magnus) greets the world with his horrifying laughter & Leg Guitar.
- 1962 — Keith Diamond (voice of Rapid Run) is born.
- 1973 — Martin Desgagné (Canadian French voice of Orion Pax/Optimus Prime in Transformers One) is born.
- 1987 — Bruno Ferian (Brazilian voice of Coolus) is born.
- 2003 — The Transformers: Beginnings HC is released by Titan Books.
- 2004 — The Transformers: Dinobot Hunt TPB is released by Titan Books.
- 2005 — Takara releases the second wave of Japanese Toys"R"Us exclusive Beast Wars Returns toys: Vehicon Thrust, Vehicon Tankor, Silverbolt and Nightscream.
- 2005 — The Galaxy Force episode "Mystical Dragon King Flame Convoy" premieres in Japan.
- 2007 — The 51st and final show in the Kiss Players radio drama series airs in Japan on the "Transformers Kiss Play: Transformers News Center" program.
- 2008 — Best of UK: Space Pirates #1 is released by IDW Publishing.
- 2009 — TakaraTomy releases Masterpiece MP-8 Grimlock as well as Henkei! Henkei! Transformers C-18 Minibot Attack Team (Beachcomber, Gong, Cliff) and C-19 Minibot Spy Team (Adams, Warpath, Wheelie).
- 2010 — The Cool Episode 1 is serialized by Kerokero Ace in their May 2010 edition.
- 2010 — The Transformers Collectors' Club exclusives Punch/Counterpunch and Shattered Glass Cyclonus are made available for pre-order.
- 2011 — United Frenzy & Rumble, G2 Optimus Prime, Scourge, Wheeljack, and Masterpiece Convoy Final Edition are released in Japan.
- 2011 — The Cool Extra #3, and the last issue, is serialized in Japan by Kerokero Ace in their May 2011 edition.
- 2012 — The Transformers: Prime episode "T.M.I." premieres in Brazil.
- 2013 — Transformers: All Spark Episode 5 "Revenge" is serialized in Japan by Kerokero Ace in their May 2013 issue.
- 2013 — The Transformers: Rescue Bots episode "Deep Trouble" premieres in Brazil.
- 2014 — Dark Cybertron Finale is released by IDW Publishing.
- 2015 — The Robots in Disguise episode "Rumble in the Jungle" premieres in Hungary and Poland.
- 2016 — The Robots in Disguise episode "Brainpower" premieres on Cartoon Network.
- 2016 — The Robots in Disguise episode "Overloaded, Part 1" premieres in France.
- 2016 — TakaraTomy releases Masterpiece MP-29 Destron Laserwave.
- 2020 — Masterpiece MP-10DC Convoy (atmos safari duckcamo Ver.) is released through Japanese Atmos stores.
- 2022 — TakaraTomy releases Kingdom KD-14 Tigatron and KD-19 Optimus Prime with Trailer and War for Cybertron Trilogy WFC-18 Cheetor, plus Kingdom KD EX-12 T-Wrecks and Selects Galvatron, Black Zarak and Artfire & Nightstick and Masterpiece MP-53+ Senator Crosscut as TakaraTomy Mall exclusives.
- 2025 — The TakaraTomy Wild King web series launches to build hype for the toyline release the following month.
- 2026 — Preorders go up for the Yolopark AMK Transformers Beast Wars Optimus Primal & Dinobot.
- 1942 — Michael York (voice of Prime #1 in Revenge of the Fallen) is born.
- 1965 — Guillaume Lebon (European French voice of the Sheriff and Professor Colan in the live-action film series and Rattrap in the War for Cybertron Trilogy) is born.
- 1967 — Peter Kjellström (Swedish voice of Cyclonus) is born.
- 1986 — Bruna Matta (Brazilian voice of NPC Narrator) is born.
- 1987 — The Fight! Super Robot Lifeform Transformers 2010 episode "The Vampires of Planet Cybertron" airs in Japan.
- 1987 — Composer Jun Okubo is born.
- 1991 — Cyberverse writer Mae Catt is born.
- 2004 — Joshin Kids Land stores offer the Natural Green Energy Axe as a promotional gift with the purchase of any Super Link toy purchase.
- 2010 — Cyber Missions 4 debuts on YTV exclusively for Canadian viewers, while Cyber Missions 5 and Cyber Missions 6 debut on Walmart's Canadian site.
- 2010 — The first wave of TakaraTomy Transformers Animated toys is released: Optimus Prime, Bumblebee, Ironhide, Ratchet, Prowl, Megatron, Starscream, Lockdown, Blackarachnia, Cliffjumper, Dirge, and two packs of Optimus Prime/Megatron, Bumblebee/Starscream, and Ratchet/Lockdown. The white EZ Collection "Demolishor Shanghai Attack" toy is added to the first 120 orders of any Animated toys from Toys"R"Us Japan's web site. Good luck getting one now!
- 2011 — BotCon 2011 pre-sells out of all of its Primus (attending) sets, Iacon (non-attending) sets, and extra loose sets. Five days after pre-orders opened. Five damn days.
- 2013 — Robots in Disguise #15 and More than Meets the Eye Volume 3 TPB are released by IDW Publishing
- 2014 — Transformers Cloud: Spacetime World: Guardians of Time Chapter 2: Part 5 is first published.
- 2015 — Paramount Pictures negotiates with Akiva Goldsman, hiring him to create a "writer's room" with the intention of building a cinematic universe.
- 2015 — The Robots in Disguise episode "Can You Dig It?" premieres in Hungary and Poland.
- 2016 — The Robots in Disguise episode "Misdirection" premieres on Cartoon Network UK.
- 2016 — The Robots in Disguise episode "Overloaded, Part 2" premieres in France.
- 2019 —Transformers #2 and Synergy are released by IDW Publishing.
- 2021 — TakaraTomy releases War for Cybertron Trilogy WFC-15 Autobot Impactor and WFC-16 Nemesis Prime and Kingdom KD-01 Optimus Primal, KD-02 Rattrap and KD-03 Cheetor, plus Siege SG-EX Soundblaster and SG-EX Acid Storm & Ion Storm & Nova Storm, Earthrise ER EX-20 Ratchet & Lifeline, ER EX-21 Bluestreak and ER EX-22 Centurion Droid, and Kingdom KD EX-01 Paleotrex are released as TakaraTomy Mall exclusives.
- 2021 — Transformers Go! Go! Justice, Peace, and Rock 'n' Roll is first published.
- 2021 — The Rescue Bots Academy episodes "Bot Blog" and "The Icebot Cometh" premieres in the United States.
- 2023 — The Canadian channel Teletoon is rebranded into Cartoon Network.
- 2023 — First day of the Rise of the Beasts Optimus Prime & Optimus Primal World Tour in Sydney, Australia.
- 2024 — Comic artist Mark Bright passes away at age 68.
- 2024 — Duke #4 is released by Image Comics and Skybound Entertainment.
- 2025 — Robosen officially reveals their Flagship Bumblebee.
- 2025 — Preorders for the Target exclusive SS86 Elite Seeker/Ground Soldier multipack go up.
- 2026 — TakaraTomy officially reveals the Transformers New Legends NL-02 Menasor G2 Color Ver. and MPG-23 Secret Agent Arcee.
- 1927 — Jean Claudio (European French voice of Galvatron and Blaster in Webworld and Carnage in C-Minor only) is born.
- 1946 — Producer Margaret Loesch is born.
- 1957 — Paul Eiding (voice of Generation 1 Perceptor) is born.
- 1962 — Marco Moreira (Brazilian voice of Mirage, Shockwave, Thundercracker and Frank) is born.
- 1974 — Daisuke Kishio (Japanese voice of Kicker Jones, Bumblebee and Quillfire) is born.
- 1974 — Tommy Morgenstern (German voice of Lucas Flannery and Orion Pax/Optimus Prime) is born.
- 1975 — Makoto Yasumura (Japanese voice of Super Link Red Alert, Wheeljack and Bruticus) is born.
- 1979 — Sector Seven (or its affiliates) attempt to extract a sample of Allspark's sub-atomic matter, resulting in a meltdown at the Three Mile Island nuclear plant. Movie Prequel #4 Transformers: Beginnings
- 1985 — Alan Fernando Velázquez (Mexican voice of Memo and voice director of Transformers One and Cyberworld) is born.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "Panic The Kremzeek" premieres in Japan.
- 1988 — The final episode of The Headmasters, "The Final Showdown on Earth (Part 2)", premieres in Japan.
- 1989 — The Victory episode "Sneak Attack! Dinoking" premieres in Japan.
- 1992 — Juca Viapri (Latin-American Spanish voice of B-127 in Transformers One) is born.
- 1998 — The Beast Wars cartoon premieres in Germany with "Beast Wars (Part 1)" and "Beast Wars (Part 2)".
- 2003 — The Legends of the Microns episode "理由 (いきさつ) - prehistory" premieres in Japan.
- 2003 — Director Bob Matz dies in Westchester, California at the age of 89.
- 2007 — Escalation #5 and The War Within TPB are released in the US by IDW Publishing. Transformers: Ghosts of Yesterday is published by Del Rey Books.
- 2009 — The Animated episode "Where Is Thy Sting?" premieres in the US. "Three's a Crowd" premiers in Canada.
- 2009 — The Transformers Animated episode "Sari, No One's Home" premieres in Italy.
- 2012 — Robots in Disguise #3 and Autocracy #6 (digital version) are published by IDW Publishing.
- 2013 — The Transformers: Rescue Bots episode "Return of the Dino Bot" premieres in Brazil.
- 2015 — The Robots in Disguise episode "Hunting Season" premieres on Cartoon Network in Australia.
- 2015 — The Robots in Disguise series make its series premiere in Germany with the episode "Pilot (Part 1)".
- 2015 — The Rescue Bots episode "Pirates Ahoy" premieres on Discovery Family.
- 2016 — The Q-Transformers: Mystery of Convoy Returns mobile game is shut down.
- 2016 — "Transformers: Robots in Disguise — A New Mission" is released on home media by Primal Screen.
- 2018 — Transformers vs. Visionaries #4 is released by IDW Publishing.
- 2018 — "Transformers: Robots in Disguise: Combiner Force - "King of the Hill" is released on home media by Beyond Home Entertainment in Australia.
- 2019 — Mazinger Z versus Transformers is first published by Villagebooks
- 2020 — TakaraTomy releases Studio Series SS-46 Megatron, SS-47 Decepticon Scavenger, Siege SG-47 Astrotrain and Nemesis Prime. TakaraTomy Mall releases Selects Seacons Overbite and Tentakil.
- 2020 — The Rescue Bots Academy episodes "In Training" and "Medix Steps Up To The Bat" premiere on Discovery Family.
- 2022 — Paramount+ launches in numerous Caribbean countries.
- 2024 — Hasbro Pulse hosts a Transformers 40th Anniversary Fanstream officially revealing the Transformers Collaborative Teenage Mutant Ninja Turtles × Transformers Party Wallop and the Target exclusive Prime Universe Cliffjumper VS Beast Wars Universe Tarantulas, G1 Universe Squeezeplay, Cyberverse Universe Tarn multipack and preorders go up for them.
- 2025 — TakaraTomy officially reveals the MPG-17 Optimus Prime Style Gen.
- 2026 — TakaraTomy releases Age of the Primes AOTP-23 Quintus Prime, AOTP-24 Blast Off, AOTP-25 Sirshot, AOTP-26 Quickstrike, AOTP-27 Junkion Jalopy, AOTP-28 Sideways, Studio Series TS-14 Airachnid, TS-15 Windcharger, MPG-18 Road Hauler, and Missing Link C-10 Ultra Magnus (w/Deerstalker).
- 1943 — Eric Idle (voice of Wreck-Gar in The Transformers: The Movie) is born. Wink wink, nudge nudge.
- 1952 — Ismael Castro (Mexican voice of Telephone operator) is born.
- 1953 — Hans-Eckart Eckhardt (German voice of Cyberverse Alpha Trion, Prowl and Hound in Transformers: War for Cybertron Trilogy) is born.
- 1956 — Jorge García (Latin American Spanish voice of Hot Rod, Grimlock, Shockwave and others) is born in El Salvador.
- 1960 — Hiromi Tsuru (voice of Copo) is born.
- 1960 — Alejandro Mayén Balderas (Voice director of the Latin American Spanish dubs of the Transformers live-action film series) is born.
- 1965 — Flavio Arras (Italian voice of Shūta Gō) is born.
- 1972 — Junichi Suwabe (Japanese voice of Tim Hansen and Sentinel Prime) is born.
- 2000 — The Beast Machines episode "Sparkwar Pt. II: The Search" premieres in the US.
- 2000 — The Beast Wars Metals episode "Remix: I Forgot the Banana!" premieres in Japan.
- 2003 — The Legends of the Microns second OP/ED single "TRANSFORMER -Dream Again-"/"Never Ending Road" is released in Japan by Columbia Music Entertainment.
- 2003 — The Armada episode "Past" premieres in the US.
- 2006 — Transformers: Generation 1, Volume 2 is released by IDW Publishing.
- 2007 — Takara releases Masterpiece MP-5 Megatron.
- 2008 — The Transformers Animated episode "Megatron Rising - Part 1" premieres in Canada on YTV.
- 2010 — The Transformers Collectors' Club exclusive Punch/Counterpunch toy sells out, a mere three days after orders are opened up.
- 2012 — How to Draw Transformers Prime is released by IDW Publishing.
- 2013 — The Transformers: Prime episode "Scattered" premieres in the United States.
- 2013 — Transformers Prime — Vol. 16 and Transformers Prime — Vol. 17 are released to home media in Japan by Avex Trax.
- 2013 — "Monkey Business" is first published by Eaglemoss/GE Fabbri in Russia.
- 2014 — The Rescue Bots episode "A Virtual Disaster" premieres on Hub Network.
- 2014 — TakaraTomy releases Generations exclusives Fireblast Grimlock and Thundercracker.
- 2015 — The Robots in Disguise episode "Sideways" premieres on Cartoon Network in Australia.
- 2015 — The Robots in Disguise episode "Trust Exercises" premieres in Japan.
- 2017 — Lost Light #4, Till All Are One #8 and the Revolution Deluxe Edition Hardcover are released by IDW Publishing.
- 2020 — Gonzalo Curiel Larráinzar (Latin-American Spanish voice director of Beast Wars) dies at age 81 from a heart attack.
- 2020 — The Transformers: Cyberverse episode "The Sleeper" and "The Citizen" premieres in the US.
- 2022 — Transformers: Heavy Metal's beta is released in Malaysia.
- 2025 — TakaraTomy releases Transformers 40th Selection Bumblebee, MPG MPG-12 Shattered Glass Optimus Prime, MPG-13 Shattered Glass Jetfire, TL-88 Lockdown, TL-89 Decepticon Dinoking, TL-90 Stunticon Menastor, SS-141 Mirage and SS-142 Optimus Prime.
- 1939 — The first publication date of the debut of Batman.
- 1955 — Humberto Vélez (Mexican voice of Tarantulas) is born.
- 1957 — Rescue Bots creator and writer Brian Hohlfeld is born in Missouri.
- 1958 — Maurice LaMarche (English voice of Six-Gun, Charlie Burns, and Drag Strip) is born, and it's even better raw.
- 1959 — Lúcia Helena (Brazilian voice of Arcee) is born.
- 1966 — Rick Pasqualone (English voice of Buzzstrike) is born.
- 1968 — Patrick Bach (German Voice Actor that works as Narrator of the German Transformers EarthSpark Audio Books from EdelKids) is born.
- 1974 — Jakub Szydłowski (Polish voice of Starscream, Hermit and High Council trooper) is born.
- 1981 — Noboru Yamaguchi (Japanese voice of Manny) is born.
- 1984 — Gustavo Vergani (Brazilian voice of Affluous and Afterburner) is born.
- 1985 — The original Transformers cartoon series French Canadian dub premieres with the episode "More than Meets the Eye, Part 1" in Quebec.
- 1987 — Théo Frilet (French voice of 24K-Bit, Dinger, Starscope and Snorg in BotBots) is born.
- 1989 — Daiki Hamano (Japanese voice of Sideswipe and Dropkick) is born.
- 2002 — The Robots in Disguise (2001) episode "Mystery of the Ultra Magnus" premieres in the US.
- 2004 — The Transformers: Armada—Best Battles and Flashbacks DVDs are released in the US by Kid Rhino.
- 2011 — Transformers: Rising Storm #2 and Transformers Prime: A Rising Darkness TPB are released in the US by IDW Publishing.
- 2012 — The final day of the Japanese "Early Bird Campaign", where pre-orders for AM01 Optimus Prime through select venues receive the exclusive Arms Micron Autobot Firebolt.
- 2012 — Prime 1 Studio is founded.
- 2012 — Trans Arts Co. files for bankruptcy.
- 2013 — TakaraTomy releases Masterpiece MP-10B Black Convoy and Encore Fortress Maximus. Original release date for Transformers GT GT-01 GT-R Prime and GT-02 GT-R Saber (moved to May 25).
- 2013 — The Fight Super Robot Transformers: Prime episode "Ultimate Transformation! Fight! Transformers" premieres in Japan which marks the end of Prime's Japanese dub broadcast.
- 2015 — Producer Roger Slifer dies at age 60.
- 2015 — The Robots in Disguise episode "Adventures in Bumblebee-Sitting!" premieres in Poland and Hungary.
- 2016 — More than Meets the Eye #51 and the reprint of the Armada Omnibus are released by IDW Publishing.
- 2019 — TakaraTomy releases Masterpiece MP-43 Megatron (Beast Wars), Siege SG-08 Blowpipe, SG-09 Flak and Topshot, SG-10 Storm Cloud and Visper, SG-11 Skytread, SG-12 Autobot Hound, SG-13 Megatron, SG-14 Shockwave, and Legends LG-EX Big Powered.
- 2020 — TakaraTomy releases Siege SG-47 Astrotrain.
- 2021 — The Bumblebee movie is released on DVD in Ecuador.
- 2022 — War's End #2 is released by IDW Publishing.
- 2022 — Stephen Keener (voice of Scorponok and Fortress Maximus from The Rebirth mini-series) passes away at age 81.
- 2022 — Bruno Dubernat (French voice of Unicron in the Transformers: Armada video game) passes away at age 60.
- 2023 — Writer Steve Skeates (The Face of the Nijika) passes away at age 80.
- 2023 — First day of the Rise of the Beasts Optimus Prime & Optimus Primal World Tour in Madrid, Spain.
- 2024 — TakaraTomy releases the Lunar Cruiser Prime, Masterpiece MP-56+ Riggorus, Masterpiece Movie Series MPM-14 Bonecrusher, MPM-11D Dark Of The Moon Ratchet, Studio Series SS-121 Novakane, SS-122 Optimus Prime, Legacy: United TL-58 Silverbolt, Dramatic Capture Series Nemesis Bridge and BWVS-08 Phantom Confrontation Ghost Of Starscream vs Haunted Waspeeter.
- 2024 — Hasbro hosts a product reveal panel at WonderCon officially revealing the 2nd Studio Series wave of the year.
- 2024 — Transformers Go! Go! #36 is published.
- 2025 — Final day of the Transformers pop up shop in Oioi at the Marui Family Ebina.
- 1925 — Pierre Garin (alternative European French voice of Hoist, Blaster and several other characters in the original cartoon) is born.
- 1937 — Kid Stuff illustrator Pablo Marcos is born in Peru.
- 1939 — Lyricist Shinobu Urakawa is born.
- 1946 — Gunnar Ernblad (Swedish voice of Optimus Prime, Starscream and more) is born.
- 1955 — Naïké Fauveau (French voice of Misha Miramond, Sally Jones and Lori Jiménez in the Unicron Trilogy) is born.
- 1956 — Kwan-cheol Kim (Korean voice of Beast Wars II Galvatron, Magmatron and Strada) is born.
- 1957 — Terry Klassen (English voice of High Wire, Skyblast, Six Shot and more, and also the voice director of the Unicron Trilogy) is born.
- 1957 — Tom Vogt (German voice of One Alpha Trion) is born.
- 1965 — Affonso Amajones (Brazilian voice of Hot Rod/Rodimus Prime, Depth Charge, Megatron and Bulkhead) is born.
- 1966 — Cezary Kwiecinski (Polish voice of Cyclonus/Snow Cat, Carlos Lopez and Jolt) is born.
- 1969 — Dirk Hardegen (German voice of Dino) is born.
- 1971 — Artist Andres Ponce is born in Argentina.
- 1976 — Marcel Collé (German voice of Sharsky) is born.
- 1979 — Jan Aleksandrowicz (Polish voice of Scourge and voice director of BotBots) is born.
- 1981 — Tatiane Keplmair (Brazilain voice of Sierra and Dani Burns) is born.
- 1982 — Brian Tyree Henry (voice of D-16/Megatron in Transformers One) is born.
- 1987 — The Omnibots leave Earth (and their human S.T.A.R.S. allies) to fight a war in another universe. You Have Been Chosen.
- 1991 — The postmark deadline for Takara's mail-away offers for the Thunder Arrow and Insectrons Bombshell, Kickback and Sharpnel.
- 1991 — The Super-God Masterforce episode "The Battle for Survival" premieres in Malaysia.
- 1996 — Liza Koshy (voice of Arcee in Rise of the Beasts) is born.
- 1997 — The Beast Wars episode "Other Voices, Part 1" premieres in the US.
- 1999 — The Beast Wars Neo episode "Sub-Commander Longrack" premieres in Japan.
- 2004 — Transformers Energon #21 is released by Dreamwave Productions.
- 2004 — Legends of the Microns—Volume 12 is released on DVD in Japan by Columbia Music Entertainment, coming with the "Linkage Part 12" mini-comic and exclusive Impulsor toy.
- 2005 — Takara releases Galaxy Force GD-09 Demolishor and GX-01 Noisemaze.
- 2006 — Beast Wars—Season 1 is released on DVD in New Zealand by Madman Entertainment.
- 2006 — Bandai Namco Entertainment is founded.
- 2009 — The BotCon 2009 promotional video "BotCon 2009: Join the Elite Guard!" debuts on YouTube and BotCon.com.
- 2010 — The Transformers #5 is released by IDW Publishing.
- 2012 — The Transformers: Prime episode "Crossfire" premieres on the Hub.
- 2012 — TakaraTomy releases a boatload of product: Prime AM-01 Optimus Prime & O.P., AM-02 Bumblebee & B.B., AM-03 Cliffjumper & C.L., AM-04 Ratchet & R.A., AM-05 Megatron & Gora, AM-06 Skywarp & Baro, the EZ Collection releases of Optimus Prime, Megatron, Starscream, Bumblebee, Cliffjumper, Ratchet, Vehicon, and Masterpiece MP-11 Starscream. Japanese Toys"R"Us stores offer the exclusive "Autobot Pinpointer" Arms Micron with the purchase of 4000yen worth of Prime toys.
- 2014 — Pluto TV launches.
- 2015 — The Q-Transformers" episode "Mystery of Return of Convoy" first premieres.
- 2015 — The Robots in Disguise episode "Hunting Season" premieres in Hungary and Poland.
- 2015 — The Robots in Disguise series make its series premiere in Latin America and Brazil with the episodes "Pilot (Part 1)" and "Pilot (Part 2)".
- 2015 — The first BotCon 2015 box set exclusive Packrat is revealed.
- 2016 — Transformers Ultimate Allstars and Transformers Operation Omega are shut down.
- 2017 — TakaraTomy releases Unite Warriors UW-EX Baldigus.
- 2017 — IDW Publishing announces the Rom vs. Transformers: Shining Armor miniseries.
- 2018 — TakaraTomy releases Legends LG-EX Greatshot and LG-EX Grand Maximus.
- 2019 — The last day the programming block KidsClick was broadcast.
- 2021 — Transformers #28 and My Little Pony/Transformers: Friendship in Disguise! TPB are released by IDW Publishing.
- 2022 — The original release date for Transformers Beyond Reality, it was unfortunately delayed but they release a new gameplay video as compensation.
- 2023 — The Transformers: EarthSpark episode "Decoy" premieres on YTV in Canada.
- 2024 — Final day of Monro's "Optimize Your Ride" promotional tie in campaign with the 40th anniversary of the Transformers.
- 2024 — The Transformers: EarthSpark episode "Let's Have Fun Together" premieres in Japan.
- 2024 — Kento Nakajima leaves the J-Pop group Sexy Zone.
- 2026 — On this Transformers Tuesday, Hasbro officially reveals the Transformers Beast Wars Predacon Collection and preorders go up for it.
