Jean-Gabriel de Tarde was a nineteenth-century French sociologist, criminologist, and social psychologist who made significant contributions to the early development of the social sciences. Born in 1843 and active until his death in 1904, Tarde developed a framework that sought to explain social phenomena through the lens of individual psychology.
Rather than viewing society solely through large-scale structures, Tarde conceived sociology as a discipline grounded in small-scale psychological interactions among individuals, comparing these dynamics to the interactions found in chemistry. In his view, the primary forces shaping human society and driving social change are the dual mechanisms of imitation and innovation. Through these concepts, he analyzed how behaviors, ideas, and practices spread throughout a population.
