First MMORPG to use adaptive difficulty

First MMORPG to use adaptive difficulty
Who
City of Heroes
What
first
Where
()
When
2004
City of Heroes was the first MMORPG to adjust the strength of enemies according to both the level of the players in the area and also how many players there are, taking the view that there is strength in numbers. Many other massively multiplayer games havesince followed suit. Guinness World Records Gamers' Edition 2009.