Forgotten Realms
The "Campaign Set" (often referred to as the "Grey Box") was later released in 1987 as a boxed set of two source books ("Cyclopedia of the Realms" and "DM's Sourcebook of the Realms") and four large maps, designed by Greenwood in collaboration with author Jeff Grubb. The set introduced the campaign setting and explained how to use it, and reserved space on the map for SSI's Gold Box computer role-playing games set in the Forgotten Realms.
Cormyr
Cormyr is a fictional country in the "Forgotten Realms" campaign setting, both created by Canadian writer Ed Greenwood, and published first by TSR, Inc. and subsequently by Wizards of the Coast for the "Dungeons and Dragons" fantasy role-playing game. Cormyr is located in the interior of the fictional continent of Faerûn, and serves as a geographical backdrop for several fantasy novels set in the Forgotten Realms.