No, Greater Moravia was the first COUNTRY to own Silesia, followed by Bohemia, and as you said, that's all what counts. So, get out of Silesia, it's rightfully Czech.
If they want it they can ask. The answer will be a harsh NO :)
I dont have problems with todays borders okay?
But we were discussing Pomerania and the fact it was first Polish and is Polish today. There shouldnt be an argument about it in the first place >_>
I spoke about Europe as a whole. France, Spain, Portugal, England... all Italian.
Its debatable if Roma= Italy but more accurate would be Roma.
Or we can just say Neanderthals -_-