So as far as I am aware the Scholar's on Ohara taught Robin how to read the language. Saul wasn't taught by them. But one would think that with the amount of time that Elbaph has had the books from Ohara someone should have started to piece it all together by now. Interesting point. Now I hope that Oda actually reveals stuff in relation to the text as that could change a lot about the history of the world and how Nika fits in.