William Fielding Ogburn was an American sociologist born on June 29, 1886, and known for his contributions to the field of sociology. He is best recognized for his work on the concept of cultural lag, which describes the period of time it takes for society to adjust to new technological advancements. Ogburn emphasized the importance of understanding the relationship between technology and social change. Ogburn served as a professor at Columbia University and was a founding member of the American Sociological Association. His influential writings, including "Social Change with Respect to Culture and Original Nature," helped shape modern sociological thought. Ogburn's research focused on the impact of technology on social structures and cultural practices.