The era had seen the effective completion of the Polonization of the lowest level of the nobility and the effective folklorization of Belarusian culture .
The Polonization of the lowest level of the nobility is the further reduction of the area of use of contemporary Belarusian .
The era had seen the effective completion of the Polonization of the lowest level of the nobility , the further reduction of the area of use of contemporary Belarusian , and the effective folklorization of Belarusian culture .