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Information in this article is about real-life people, companies, and objects, and does not relate to the in-universe Sonic series.
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The Sonic the Hedgehog 20th Anniversary is a celebration throughout 2011 of twenty years since the start of the Sonic the Hedgehog series with the release of Sonic the Hedgehog in 1991. It was preceeded by the fifteenth anniversary and followed by the twenty-fifth anniversary.

Celebration

Games

Merchandise

Comics

Albums

Other

Gallery

Artwork

Gallery

Character Twitter icons

Gallery

Wallpapers

Gallery

External links

Sonic the Hedgehog in other media
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