SeasonIV

In early summer 2005, some shard had EM events. Maybe I can call it a start of Season IV.
Three threads for each season I to III have been combined as a thread Event Items - All Seasons.
It became difficult for me to see pics and reports directly in posts. In addition, the number of items is still large like Season III.
As for end of Season IV, I think it's around launch of ML Autumn 2005, the purification of corrupted Yew and the establishment of Heartwood Portal.
But this season didn't remain active until in the end of this year.