The Realms of the Dragon was created Oct 14, 1992 as a Discworld clone. (Discworld is a MUD based on the Terry Pratchett series of the same name. The mudlib is made public, and is the base code for many MUDs including the Realms of the Dragon and Final Realms.) The people who started it were Azuth, Elric and Tanis.
Tanis and Elric pirated the mud library from Forgotten Realms MUD (now known as Final Realms). Ducky, the God of Forgotten Realms at the time, got so angry he destroyed the machine that the Realms of the Dragon was residing on.