It is Brew Day in Norrath! This is SOE version of St Patrick's Day.
There are some quests in game, not sure how long they will last:
Beers for Brell!
http://eq2.allakhazam.com/db/quest.html?eq2quest=4714
***************************
Brell's Everlasting Brew
http://eq2.allakhazam.com/db/quest.html?eq2quest=2892
**************************
Snoogle's Presentation
http://eq2.allakhazam.com/db/quest.html?eq2quest=4661