On the Origin of Species that nature and human society were governed by natural laws. The "Origin of Species" as a book of wide general interest became associated with ideas of social reform. Its proponents made full use of a surge in the publication of review journals, and it was given more popular attention than almost any other scientific work, though it failed to match the continuing sales of "Vestiges". Darwin's book legitimised scientific discussion of evolutionary mechanisms, and the newly coined term "Darwinism" was used to cover the whole range of evolutionism, not just his own ideas. By the mid-1870s, evolutionism was triumphant. While
On the Origin of Species in Relation to Sex" twelve years later, he said that he had not gone into detail on human evolution in the "Origin" as he thought that would "only add to the prejudices against my views". He had not completely avoided the topic: It seemed to me sufficient to indicate, in the first edition of my 'Origin of Species,' that by this work 'light would be thrown on the origin of man and his history;' and this implies that man must be included with other organic beings in any general conclusion respecting his manner of appearance on this earth. He also