Quote Originally Posted by Throbert McGee View Post
If I'm not mistaken, the OCS influence also explains the long survival of the Cyrillic vowel ѣ (yat) in Russian, after it had disappeared from other Slavic languages. (And, allegedly, Bolshevik spelling reformers were eager to get rid of this letter because it "looked Biblical/religious".)
I'm not sure that's true. Yat was prnounced differently from e untill the seventeenth century probably in the ancestor of standard Russian.