Final Fantasy XI is 11 years old this year (11 years and six months at this point, but that's nitpicking). So it seems appropriate that the title is kicking off a big anniversary event on November 11th. Except that it's really kicking off not one big anniversary event but 11 smaller ones. You see the theme at work. Whether you've been around for all 11 years or just 11 days, there's plenty of rewards available for everyone.
Seal drop rates are improved for all characters in a party during the anniversary timeframe, as are are double synthesis skill increase rates and several seal-based battlefield rewards. Players will also earn double experience, doubled Salvage drops, doubled Monstrosity experience, doubled Shining Stars in Mog Gardens... the list goes on. Almost anything you choose to do between now and November 25th will see a significant boost, so take a look at the full list of bonuses and get ready to enjoy 11 bonuses for the next 14 days. (They can't all line up perfectly.)