Unilineal Evolution

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Morgan’s idea of developmental stages of evolution were a bit more complicated than they may at first sight seem. Savagery, barbarism, and civilization were the core of the theory, though with further classifications within each category there did exist a reflection somewhat of scientific methodology at work within this system of classification. Barbarism, for instance, had three subdivisions; lower, middle, and upper. Unveiled in 1877 in his book Ancient Society, Morgan characterized human culture as something that evolves. Morgan reflects on his theory stating to the effect that he declared he had evidence proving savagery, his earliest theoretical stage, preceded barbarism in all societies, and barbarism so too preceded civilization. Morgan …show more content…

Morgan thought these stages were pervasive throughout humanity and all society’s went through the same stages in the same order. This is what is meant within the term unilineal evolution. By this he meant that all societies travel through these stages, though at different rates. Morgan theorized all societies could be discussed in this way and that all societies were operating at different rates of evolutionary complexity. This idea of unilinearity is another aspect refuted soon after by Franz Boas. Important however, was the link Morgan identified between social progress and technological progress. Despite the reality that these ideas are generally obsolete in today’s world, it is realizations such a this link between social and technological progress that mark Morgan’s importance (Hersey 1993, …show more content…

The theory of diffusion in itself became so important in its representation of the growth of societies and civilizations that there remains little to be debated in relevant discussion regarding this specific area. The diffusionist proposition is so strong in its argument for a lack of defined laws by which civilizations arise that it essentially renders Morgan’s ideas involving cultural evolution, through his stages of savagery, barbarism, and eventually civilization, invalid (White 1945,

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