The Origins of Humans. ... The theory of evolution was first put forward by Charles Robert Darwin. ... Aboard the Beagle, Darwin realized that some of his own observations of fossils and living plants and animals cast doubt on some accepted scientific theories. ... Subsequently, Darwin published his complete theory in a book called On the Origin of Species in 1859; the book was sold out on the first day of publication and was referred to as "the book that shook the world". ... They argue that by accepting evolution as the true origin of the human race, we are rejecting creationism. ...

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