When was the Forgotten Realms campaign introduced?
Forgotten Realms Campaign Setting
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The Cyclopedia of the Realms provides background information on and details maps of the locations in the accompanying maps of the Forgotten Realms.[1] It begins with an explanation of the Realms' treatment of time, names, language, and currency, and its gods and religion.[2] The remaining 75 pages of the book is an encyclopedic and alphabetic listing of important places, races, nations, cultures, character classes, and organizations of the Realms.[2]