Event Items

A guildie of mine said that certain items such as Charr Carvings, can be traded with NPC's for event items, during events.

Is it true? If yes, what items can be traded, on each continent?

It's true. Look at Wiki for the events and the needed collectibles.

http://gw.gamewikis.org/wiki/Categor...ecial_event%29

Oh, thanks I searched the wiki for a few minutes, but didn't find that page x.x