Daily Challenges
From Gloria Victis
Daily Challenges are also called "dailies". Press H To bring up the Achievements menu, and select Daily Challenges to bring up the list and make your selections. You can choose 3 dailies out of a list of about 20 per day. Dailies can be completed infinitely, but they become progressively more difficult, and they stop rewarding contribution points after the 12th challenge completion.
You can change your daily if you have not made any progress on it yet.
Also see: Events