Which sociological theorist first placed great emphasis on the innate differences between dyads and triads?

His name is Georg Simmel, is a German sociologist who researched social groups and worked on various research projects on sociology and behavior of humans. This sociology professional emphasized the innate differences between dyads and triads, and I elaborate several analyzes in this regard. Diada was used to refer groups of people within society and triad was a component in society applied towards larger groups. Simmel was one of the first sociologists to bring great theories and knowledge.