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Rating Newest Oldest. Best Answer: Social Darwinism is a vastly oversimplified application of the idea of survival of the fittest, to human racial groupings. Evolutionary biology is a well-established, scientifically credible body of theories and findings.
Unilineal evolution (also referred to as classical social evolution(ism)) is a 19th century social theory about the evolution of societies and cultures.ntellectual Thought Edit. Theories of social and cultural evolution are common in modern European thought. Prior to the 18th century, Europeans predominantly believed that societies on Earth were in a state of decline.