Global MapleStory Timeline

Does anyone know the year dates of what Nexon received an "F" by the Better Business Bureau? One year they had a "F" and the next year, a "B". That's strange but that's also history that I think is worth mentioning.

Also, the exact months of when each the servers was released.

I swear I recall reading that Nexon had an F this year, but the next times I checked it slowly increased. >_>

I wouldn't doubt it if it was 2007 or 2006..