The content of the terms «community», «unity», «interaction» of Slavic peop­les to still inspires the researchers whatever the epoque and the sphere of knowledge – lan­guage, lite­rature, culture, political and social history it is concerned. The current vague­ness, uncer­tain­ty of these terms and concepts leads to a multiplicity of inter­pretations, depending on the poli­tical and cultural approaches. Only regarding them as his­torical categories will fill them with specific values ​​and their transformation over the time as well as the functioning of the whole complex of symptoms of peoples community and their cultures or some of its com­po­nents, to determine which of them belong to the past, which become the dominant value, and which turn to meaningless stereotypes.