This document discusses the history and development of sociology. It began as philosophical analyses of social life and studies of family and customs. It evolved into a scientific discipline between the 15th-18th centuries with thinkers like Hobbes, Locke and Rousseau. Sociology was formally established as a science in the late 19th century at universities in the United States, France and United Kingdom. It spread to universities in India in the early 20th century. Sociology is characterized as a scientific, empirical, and general study of society and social phenomena.