The article describes the difficulties and mistakes, “head-on” application of “biological” concepts of evolution by natural selection to social history, when the struggle of classes and parties perceived as inter-individual competition, with the selection of the “best” individuals and the spread of their signs in the population. The author shows the possibility of an interesting application of these concepts, based on the fact that the struggle of classes and parties, as the driving force of historical development, constantly changing social niche of people living in the community. In the future, their physicality adapts to this niche by the action of stabilizing selection. The author show why the idea that class breaks and / or differences are created by selection is invalid.