Controversies are pervasive in the history of science. History is thus here also at odds with science's images. According to both traditional and contemporary views of science, there are no scientific controversies sui generis. In traditional images of science controversies are external to science proper; in some contemporary views nothing about controversies in science specifically distinguishes them from controversies in other domains. According to one traditional image, science progresses from common ground to conclusions according to secure procedures such that there is no place for disagreement nor, therefore, for controversy. According to another traditional image of science, there are no such secure procedures. On the contrary: one does and even should jump to conclusions. Whereas here subsequent criticism is called for, it seems that controversy is not. This image is built on the assumption that refutations are clear cut, so that producing a valid refutation does not require a lengthy exchange of arguments.