The novel "When there was no man" is dedicated to the distant past, the process of "humanizing" people. This period, which lasted hundreds of thousands of years, the author reduced and showed on some generations of chungs. It is impossible to say for sure whether the humanization process proceeded in this way, as the author draws it in episodes depicting fights between chungs and large predators, mastery of caves, endless wanderings. However, the proposed book, despite the fact that it is a work of art in form, was the result of serious research.