Anniversaries/August 15
From Sonic Retro
August 15 (add)
- 2007 — Issue #23 of the Sonic X comic series is released in North America.
- 2012 — Issue #43 of Sonic Universe is released in North America.
- 2015 — "Battle of the Boy Bands", the 39th episode of Sonic Boom, airs in North America.
- 2017 — Sonic Mania is released for the PlayStation 4, Xbox One and Nintendo Switch in North America, Europe, and Australia.
- 2018 — Issue #8 of the Sonic the Hedgehog comic series by IDW Publishing is released in North America.
- 2020 — The Sonic the Hedgehog 3 LCD game is re-released by Hasbro Gaming in North America.