Anniversaries/January 9
From Sonic Retro
January 9 (add)
- 2002 — The final issue of Sonic the Comic, Issue #223, is published in the United Kingdom.
- 2013 — Issue #244 of the Sonic the Hedgehog comic book series by Archie Comics is released in North America.
- 2017 — The Osaka version of Sonic Adventure Music Experience, a CD, is released in Japan.