Herbert Spencer is most known for his social Darwinism ideology, which claims that the processes of evolution, apply to human societies and classes, and Biological species
He created a concept that implies "survival of the fittest", which indicated that those who were physically fitter would survive in the social sphere owing to some biological process, to finally, pass on their genes
Social Darwinism is the concept that some people rise to positions of authority in society because they are naturally superior. Over the last century and a half, social Darwinism has been used to explain imperialism, racism, eugenics, and socioeconomic inequality at different times.