Anniversaries/November 23
From Sonic Retro
November 23: Sonic Mania Day (add)
- 1993 — Sonic the Hedgehog CD is released for the Sega Mega-CD in North America. Sonic Spinball is released for the Sega Mega Drive in North America. Sonic Chaos is released for the Sega Game Gear in North America.
- 2003 — "Toubou-sha Sonic", the 34th episode of Sonic X, airs in Japan.
- 2005 — Sonic Rush is released for the Nintendo DS in Japan. Sonic Rush Original Groove Rush, an album, is released on CD in Japan.
- 2006 — Sonic the Hedgehog is released for the Xbox 360 in Australia and South Africa.
- 2007 — Mario & Sonic at the Olympic Games is released for the Wii in Europe.
- 2011 — Sonic the Hedgehog CD Original Soundtrack 20th Anniversary Edition, an album, is released on CD in Japan. Issue #34 of Sonic Universe is released in North America.
- 2012 — Sonic & All-Stars Racing Transformed is released for the Xbox 360 and PlayStation 3 in Russia.
- 2016 — Sonic the Hedgehog Volume 4: Control, a trade paperback, is released in North America.
- 2018 — Sonic Forces & Sonic Mania Plus Double Pack is released for the PlayStation 4, Xbox One, and Nintendo Switch in Europe and Australia.