http://everquest.allakhazam.com/history/patches.html
Patches from July 2002 - December 2002
Stand Out Occurrences:
- DoT spells cast by different players on an NPC now stack (Sept. 4)
I am fairly sure, but not 100% certain, that this patch change also allowed a single druid's dot spells to stack with each other (other than the fire-based forms which lower AC).
September 2002 post-dates Luclin I believe.