The country is divided into two main parts by three large rivers, the Rhine (Rijn) and its main distributary Waal, as well as the Meuse (Maas). These rivers function as a natural barrier between earlier fiefdoms, and hence created traditionally a cultural divide, as is evident in some phonetic traits that are recognisable north and south of these Large Rivers. In addition to this, there was, until quite recently, a clear religious dominance of Catholics in the south and of Protestants in the north.