ABSTRACT. Danto contends that a great many, if not all the laws which are elements of explanations in history cover classes of instances which are both open and non-homogeneous. Kroeber states that in the history of continuity and change, revolutionary episodes have an important niche: historians and social scientists have contributed strongly by chronicling and comparing revolutionary situations. Engels claims that history is made in such a way that the final result always arises from conflicts between many individual wills, of which each in turn has been made what it is by a host of particular conditions of life.