Anniversaries/January 18
From Sonic Retro
January 18 (add)
- 1994 — Issue #9 of the Sonic the Hedgehog comic series by Archie Comics is released in North America.
- 1996 — Issue #33 of the Sonic the Hedgehog comic series by Archie Comics is released in North America.
- 2004 — "Amy ai no Touhikou!?", the 42nd episode of Sonic X, airs in Japan.
- 2012 — Issue #36 of Sonic Universe and Volume 17 of the Sonic the Hedgehog Archives are released in North America.
- 2023 — The fourth and final issue of the Sonic the Hedgehog: Scrapnik Island comic mini-series is released in North America.