April 8
- 1964 — Writer and producer Steven DeKnight is born.
- 1967 — Kazunari Tanaka (Japanese voice of Cybertron Thundercracker) is born.
- 1968 — Sérgio Moreno (Brazilian voice of Blurr, Inferno and War for Cybertron Trilogy Dinobot) is born.
- 1976 — Hiroki Shimowada (Japanese voice of Scalpel) is born.
- 1978 — Klaudiusz Kaufmann (Polish voice of Blades and Grimlock) is born.
- 1979 — Actor B. Adam Baillio (Timothy in Age of Extinction) is born.
- 1989 — The Victory OP/ED single "Transformer V"/"Cybertron Banzai" is released in Japan by Columbia Music Entertainment.
- 1993 — Cadu Ramos (Brazilian voice of Repugnus and Doublecrosser) is born.
- 1998 — The Beast Wars II episode "White Lion, Run!" premieres in Japan.
- 2006 — The Cybertron episode, uh, "Cybertron", premieres in the US.
- 2009 — The Arrival TPB, Defiance #4 and "Spotlight: Drift" are released by IDW Publishing.
- 2015 — More than Meets the Eye #39, Transformers vs. G.I. Joe #6 and The Transformers Vol 7 — Combiner Wars: First Strike TPB are released by IDW Publishing.
- 2016 — Second day of BotCon 2016 in Louisville, Kentucky.
- 2020 — First day of preorders on TakaraTomy Mall for Generations Selects Super Megatron
- 2020 — The Generations Selects Special Comic Super Megatron comic 2 is first published.
- 2021 — The Generations Selects Special Comic Finale is first published.
- 2022 — Warner Bros. Discovery is formed.
- 2023 — The EarthSpark episode "Secret Legacy, Part 2" premieres in Cantonese.
- 2024 — Transformers: Beast Awakening premieres on Star Channel in Japan.
- 2025 — Skybound Entertainment launches a Kickstarter to produce a hardcover release of The Transformers Compendium, which meets its funding goal in 2 minutes.
- 2026 — Transformers #31 is released by Image Comics and Skybound Entertainment.
- 2026 — TakaraTomy uploads the "Business Trip! Wild King Research Institute - Episode 10 -" to YouTube.