Comment 3d mmorpg before 2000 (Score 2, Informative) 261
There is a few games that was released before 2000.
Meridian 59 - Released in 1996
Everquest - Released in 1999
Asheron's Call - Released in 1999
This is according to:
http://www.mmorpg.com/gamelist.cfm/show/all/sCol/estimatedRelease/sOrder/asc