Board Thread:Lore Discussion/@comment-24256580-20131206011928/@comment-9062114-20140106070438

Yes, they had to enter Black Marsh in order to trade, the Argonains didn't just leave Argonians on there doorstep as a gift.

Even if they did do that, explain how a few Dunmer could get through Black Marsh, when not even Tiber Septim could, when not even the Daedra could? It makes no sense in any way.