But with regard to the material world, we can at least go so
far as this-we can perceive that events are brought about not by
insulated interpositions of Divine power, exerted in each particular
case, but by the establishment of general laws.

W. Whewell

On this day in 1859, publisher John Murray released a book called On the origin of species by means of natural selection. The rest, as they say, is history.

Charles Darwin's complete works are available at the Darwin Online site, courtesy of the University of Cambridge. You can read his books, notebooks, papers and manuscripts. And if you haven't got time to read them, text-to-speech software will do it for you.