Final Fantasy: A Historical Compendium provides you with various historical information from the Final Fantasy series such as Characters, System, Scenes, etc. Final Fantasy VII was recently added to this compendium. Click the link below to check out this historical compendium.
http://www.square-enix.co.jp/dissidia_012/ffhc/
http://www.square-enix.co.jp/dissidia_012/ffhc/