The answer is in the category this question has been entered into. Charles Darwin.
Answer:
Darwin proposed that species changed in response to natural processes. He knew that species could be modified by human intervention as the breeding of cattle, dogs, cats and various farm crops was widely practiced.
Jean-Baptiste Lamarck proposed his theory of the transmutation of species, the first fully science bases theory of evolution. Both Darwin and A. R. Wallace published books on the theory of evolution in the 19th century.
All early thinking on evolution including Darwin's, was hampered by the absence of any understanding or awareness of genes or DNA as messengers of change. As consequence many "Theories of Evolution" going back to the Greeks and Chinese were hampered by this lack.
Jean-Baptiste Lamarck.
Jean Lamark was the scientist that first described evolution as a process of adaptation.
Charles Darwin
Gradualism is the concept but I would not give it the ranking of scientific theory. It is more a subset of the theory of evolution by natural selection and was first formulated into that theory by Darwin.
Charles Darwin. His theory is The Theory of Natarual Seletion. A theory that has been proved even today
no Charles Darwin was the first scientist to develop the theory of evolution. Einstein was a math teacher. and was first put into 'special' classes
Jean-Baptiste Lamarck.
Charles Darwin and Alfred Wallace were the first to formulate a scientific argument for the theory of evolution by means of natural selection
Darwin was the first scientist to have the courage to put forward the theory of natural selection.
Jean Lamark was the scientist that first described evolution as a process of adaptation.
The theory of evolution by natural selection was developed most fully by two men. Robert Charles Darwin and Alfred Russel Wallace. Since that time, a hundred and fifty one years ago, many more people have contributed to the theory.
Charles Darwin is primarily associated with the theory of evolution through his work on natural selection and the publication of "On the Origin of Species." Other scientists, such as Alfred Russel Wallace, also contributed to the development of evolutionary theory.
The theory of evolution was accepted by scientists in 1859, Darwin's first book was published the same year that his theory was accepted.
edwin kiuper
Charles DArwin
Charles Darwin
That is a very vague question but I would say Darwin who proposed the theory of evolution which conflicted with religious views that God created humans.