How a Medieval Muslim thinker invented Sociology

History is "the record of human society, or world civilization; of the changes that take place in the nature of that society...; of revolutions and uprisings by one set of people against another, with the resulting kingdoms and states with their various ranks; of the different activities and occupations of men, whether for gaining their livelihood or in various sciences and crafts; and in general, of all the transformations that society undergoes by its very nature.."
Ibn Khaldoun, a 14th-century Arab historian