In 1859, Darwin put the theory of organic evolution on a new basis, discovering a process by which organic evolution can occur, and provided observational evidence that he had done so.
N'áfọ̀ 1859, Darwin tinyere nkọwa nke organik evolutiọn n'ime ntọala ọhụrụ, site na nchọpụta ya gbanyere ótù usoro organik evolutiọn sina dapụta, ma nyekwa íhé akaebe nke gosiri n'otu ọ si eme ya.