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List of 2004 Illinois Conventions
| Convention | Dates | Location |
|---|---|---|
| To Be CONtinued 2004 | April 9-11, 2004 | Radisson Hotel Chicago O'Hare Rosemont, IL, USA |
| Anime Central 2004 | May 14-16, 2004 | Hyatt Regency O'Hare Chicago Rosemont, IL, USA |
| The Official Transformers Collectors' Convention 2004 | July 30 - August 1, 2004 | Donald E. Stephens Convention Center Rosemont, IL, USA |
| Wizard World Chicago 2004 | August 13-15, 2004 | Donald E. Stevens Convention Center Rosemont, IL, USA |
| Official Stargate SG-1 Convention 2004 | August 27-29, 2004 | Radisson Hotel O'Hare Rosemont, IL, USA |
| Anime Reactor 2004 | October 22-24, 2004 | Crowne Plaza Chicago O'Hare Rosemont, IL, USA |
| WindyCon 2004 | November 12-14, 2004 | Wyndham O'Hare Rosemont, IL, USA |
| Anime Sound & Vision 2004 | November 19-20, 2004 | Crowne Plaza O'Hare Rosemont, IL, USA |
| Midwest FurFest 2004 | November 19-21, 2004 | Hyatt Regency Schaumburg, Chicago Schamburg, IL, USA |
| Chicago TARDIS 2004 | November 26-28, 2004 | Wyndham Chicago O'Hare Des Plaines, IL, USA |
| Convention | Dates | Location |