Give some stream of consciousness and then the answer. The term social Darwinism is used to refer to various ways of thinking and theories that emerged in the second half of the 19th century and tried to apply the evolutionary concept of natural selection to human society. The term itself emerged in the 1880s, and it gained widespread currency when used after 1944 by opponents of these ways of thinking. The majority of those who have been categorized as social Darwinists did not identify themselves by such a label.

Answer this question: the application of the theory of evolution and natural selection to human society was known as?
The relevant information is: The term social Darwinism is used to refer to various ways of thinking and theories that emerged in the second half of the 19th century and tried to apply the evolutionary concept of natural selection to human society.
Therefore, the answer is social Darwinism.