This paper tries to expound, — in the first place to students of the humanities —, that history of science may be an aid to bridge the gulf between sciences and the humanities. The first part shows that in particular the external (religious, philosophical, economical, social) influences on science are a matter of common interest. The second part points out the similarities of history of science and other historical disciplines, whereas the fact that the former's subject, „Science”, investigates non-human phenomena and bears a strongly progressive character makes them differ. Consequently, historiography of science shows a tendency to an ‚evolutionistic’ approach.
The author advocates a more phenomenological method by which the historian looks at science of the past as if he were its contemporary critical observer. It is maintained that, when evaluating the past, the standard should not be whether ancient tenets were „true”, but whether they were „scientific”: not all that is scientific, is necessarily true. Finally, it is pointed out that history of science shows that, fundamentally, „science” ‚too’ belongs to the humanities.