The answer is cultures. Unmistakable provincial societies created among the people groups of North America in the vicinity of 10,000 and 2,500 years prior. Over hundreds of years unmistakable gatherings built up their own dialects, social associations, religious convictions, and practices, governments.
The Price of an Organized Society: Conformity in the 1960s. ... Gropius was mainly concerned with conformity in architecture, but he recognized that buildings reflected society.