It is a common misconception that Cyril and Methodius were the first to bring Christianity to Moravia, but the letter from Rastislav to Michael III states clearly that Rastislav's people "had already rejected paganism and adhere to the Christian law."
Cirilio e Metodio non foron os primeiros en levar a mensaxe cristiá a  Moravia, nunha carta de Rastislav a Miguel III afírmase claramente que  "xa rexeitaran o paganismo e se adheriran á lei cristiá."