Maintenance for the week of December 23:
• NA megaservers for maintenance – December 23, 4:00AM EST (9:00 UTC) - 9:00AM EST (14:00 UTC)
• EU megaservers for maintenance – December 23, 9:00 UTC (4:00AM EST) - 14:00 UTC (9:00AM EST)
Certain achievements give you wearable titles you can use in the game to display below your name.
To view the ones you've unlocked, press J to go into your journal. Then go to the achievement tab in your journal section, this is where they are all documented.