Which sociologist suggested that modernity was a time when each person was a unique combination of overlapping group affiliations?

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Georg Simmel suggested that modernity was a time when each person was a unique combination of overlapping group affiliations, which he referred to as "the stranger" or "the outsider within." He argued that the individual in modern society is a member of many social groups at the same time but is ultimately defined by none of them, resulting in a sense of detachment and individualism.

Which Sociologist Suggested That Modernity Was a Time When Each