Dlyol

On Dalinar saying he hadn't seen a Dawncity, he says that immediately before he has his vision of Nohadon which is set in Kholinar so while it may have been right at the time but (if we assume Kholinar is one) it was pretty immediately invalidated

On the question of whether Sja-anat managed to corrupt Radiant spren pre-Recreance this quote from in world WOR sure makes it sound like she did and the Radiants responded with extreme prejudice 

Quote

"In short, if any presume Kazilah to be innocent, you must look at the facts and deny them in their entirety; to say that the Radiants were destitute of integrity for this execution of one their own, one who had obviously fraternized with the unwholesome elements, indicates the most slothful of reasoning; for the enemy’s baleful influence demanded vigilance on all occasions, of war and of peace." - WOR chapter 51 epigraph

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