Originally Posted by Seweryn

Do you mean Cyril and Methodius?? - they never made strong influence here, in these times when they worked in Moravia, Church in Poland was a part of German Church - Magdeburg Diocese.

Latin ritual in Church (Roma Rite) was used till 1970.
In July 2007 Pope Benedict XVI restored this tradition and now in every diocese some masses (usually one mass in Month) are in Latin.

About this sentence, it is Old Polish and translation is hard even to me, but it means something like this:
Lets all the outside nations know, that Poles are not goose, and their own language have.