Final answer:
Herbert Spencer and William Graham Sumner developed the concept of Social Darwinism, applying the idea of "survival of the fittest" to societal evolution.
Explanation:
Herbert Spencer and William Graham Sumner developed the concept of Social Darwinism. Social Darwinism applied the idea of "survival of the fittest" from Darwin's theory of natural selection to social groups, suggesting that competition and inequalities are necessary for societal progress. Spencer and Sumner believed that intervention in social issues would disrupt the natural order of evolution.
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