Given the inevitability of the impregnability of modifications generated by the evolution of time, all forms of liability existing at present have been influenced by time, and especially by the evolution of the society. The stagnation of any phenomenon would be totally abnormal, if isolating it from all the things that are surrounding it or keeping aside the normal impact of those. Especially if it refers to important phenomena for the society, even vital, it is inadmissible to abstract the impact of time and evolution of the society on them. The social liability, as a part of this category of phenomena, cannot possibly be excepted. We will even try to highlight various types of liability in their historical evolution, as well as many other inherent elements, also in their evolutional aspect. We will try to do this because, for a better and scientifically grounded understanding of the social and legal liability, it is mandatory the use of the historical method, that underlines its utility through the formation of the continuity of these phenomena.