once Enlightenment thinkers understood how the social world worked, they wanted to create a " better" and a more "rational" world, with an emphasis of "reason"
=emergence of Natural Science
following to the emergence of empirical natural science, Claude Henri Saint-Simon (1760-1825) thought that the study of social phenomena should employ the same scientific techniques as were used in the natural science
=Positivism.
Auguste Comte followed Saint-Simon, and used the term "sociology" for the first time in the world to study of the society