Anniversaries/December 24
From Sonic Retro
December 24: Christmas Eve (add)
- 1970 — Keith Silverstein, the English voice of Vector the Crocodile since 2010, is born.
- 1994 — Sonic & Knuckles Official Game Book, a strategy guide, is published in North America. Issue #42 of Sonic the Comic and the ninth and final of Sonic the Poster Mag are released in the United Kingdom.
- 1996 — Issue #94 of Sonic the Comic is released in the United Kingdom.
- 1997 — Sonic R Official Guide, a strategy guide, is published in Japan.
- 2003 — Issue #131 of the Sonic the Hedgehog comic series by Archie Comics is released in North America.
- 2008 — The 40th and final issue of the Sonic X comic series goes on sale in North America.
- 2014 — Issue #71 of Sonic Universe is released in North America.
- 2016 — "I Can Sea Sonic's Fear From Here", the 59th episode of Sonic Boom, airs in North America.
- 2019 — Meet Sonic!: A Sonic the Hedgehog Storybook, Sonic & Friends Sticker Activity Book, and Sonic the Hedgehog: The Official Movie Mad Libs, all books, are released in North America.