'''Darwinism''', named for the nineteenth-century English naturalist [[Charles Darwin]], holds that [[natural selection]] is the directive or creative force of [[evolution]]. [http://www.newworldencyclopedia.org/entry/Darwinism]
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'''Darwinism''', named for the nineteenth-century English naturalist [[Charles Darwin]], holds that [[natural selection]] is the directive or creative force of [[evolution]]. <ref> [http://www.newworldencyclopedia.org/entry/Darwinism]</ref>
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The [[theory of natural selection]] is one of two major evolutionary theories advanced by Darwin, the other being the [[theory of descent with modification]].<ref> [http://www.newworldencyclopedia.org/entry/Darwinism]</ref>