The fundamental question in history implies the discovery of a mechanism for both the differentiation of various human social groups and the transfor… - Eric Hobsbawm

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The fundamental question in history implies the discovery of a mechanism for both the differentiation of various human social groups and the transformation of one kind of society into another, or the failure to do so. In certain respects, which Marxists and common sense regard as crucial, such as the control of man over nature, it certainly implies unidirectional change or progress, at least over a sufficiently long time-span. So long as we do not suppose that the mechanisms of such social development are the same as or similar to those of biological evolution, there seems to be no good reason for not using the term 'evolution' for it.