Karl Marx is most renowned for the concept of "class struggle." He posited that historical progression is driven by conflicts between social strata, specifically the proletariat (laborers) and the bourgeoisie (owners of capital). Marx contended that this conflict would ultimately result in the dismantling of capitalism and the creation of a society devoid of class divisions.
While Max Weber, Émile Durkheim, and George Herbert Mead offered substantial advancements to sociology, the notion of class struggle is predominantly linked to Marx.