From Sonic Retro
July 1 (
- 1994 — Sonic the Hedgehog 3 Koushiki Guide Book, a strategy guide, is published in Japan.
- 1998 — Issue #6 of the Sonic Super Special comic series is released in North America. Issue #133 of Sonic the Comic is released in the United Kingdom.
- 2015 — Sonic Dash 2: Sonic Boom is released for Android devices alongside Issue #9 of the Sonic Boom comic series in North America. Sonic X episodes 1-52 are uploaded to YouTube for free from TMS Entertainment in English worldwide.
- 2017 — "Inn Sanity", the 86th episode of Sonic Boom, airs in North America.
- 2020 — Sonic the Hedgehog Volume 6: The Last Minute, a trade paperback, is released in the United Kingdom.