Sociologists study human society and social behaviour.
They investigate the social, religious, political, economic and governmental institutions of a society. Sociologists are particularly interested in how these structural features of a society change and what impact these changes have on everyday life. A key concern of sociologists is to study families, communities and groups and to analyse their impact on interaction between people. Sociology as a core discipline in the social sciences contributes to an understanding of societal dynamics. In the nineteenth century, sociology emerged to study the large scale social changes brought about by the industrial revolution.