Some more events now write achievements, including:

Alchemist of Fornost
Amon Othar
Balrog
Black dagger guild
Cocoon
Depths of Moria
Foci
Lockpicks
Mystical ring
Old tanner
Taurion
Theddin's mines
Tom Bombadil
West gate of Moria
Witch-king

If you have already done a given task in the past, in most of the cases you
need to re-achieve the task to get the achievement.

BR, Antti

[edit: added lockpicks]