Here is the full list of all 19 Orwell: Ignorance is Strength achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Decrease their numbers.
Frame someone.
Cause a stir.
Connect two loose ends.
Turn one on the other.
Draw a full triangle.
Corner someone.
Complete April 15.
Dispense deliverance.
Prevent a provocation.
Find what is hidden from sight.
Complete April 14.
Make someone go to the wrong place.
Retrieve with care.
Complete April 13.
Fulfill the prophecy.
Trust, but verify.
Inform yourself well.
Drain the swamp.