Anniversaries/September 7
From Sonic Retro
September 7 (add)
- 1999 — Sonic the Hedgehog: The Movie, a VHS, is released in North America.
- 2003 — "Taihou! 6 Chaos Emerald", the 23rd episode of Sonic X, airs in Japan.
- 2006 — Issue #166 of the Sonic the Hedgehog comic series by Archie Comics is released in North America.
- 2007 — Sonic the Hedgehog 3 is released on the Wii Virtual Console in Europe.
- 2009 — Livro Ilustrado Sonic X, a sticker book, is published in Brazil.
- 2011 — Sonic Universe Graphic Novel Series Volume 1: The Shadow Saga, a trade paperback, is released in North America.
- 2016 — Sonic Boom Volume 1: The Big Boom, a trade paperback, is released in North America.
- 2021 — Sonic Colours: Ultimate is released for the PlayStation 4, Xbox One, Nintendo Switch and Epic Games Store in North America, Europe and Australia.