Anniversaries/December 17
From Sonic Retro
December 17 (add)
- 1997 — Issue #56 of the Sonic the Hedgehog comic series by Archie Comics is released in North America. Issue #119 of Sonic the Comic is released in the United Kingdom.
- 2010 — Sonic the Hedgehog Spinball is released for iOS in Japan.
- 2014 — Issue #10 of Sonic Super Digest is released in North America.
- 2016 — "Anything You Can Do, I Can Do Worse-er", the 58th episode of Sonic Boom, airs in North America.