Abstract
The constructionist thesis of history states, in general, that the historian must construct a theory to explain the past. Some, including Leon Goldstein, attempt to push this formulation beyond a description of historical methodology. They argue that since the real past is inaccessible to present observation, the real past can have no relevance for historiography. The distinctions made between the present, the real past, and the historical past generate problems with the concepts of past and present knowledge, theoretical infrastructure and experience, verification and truth, conflicting historical theories, and observation and knowledge. Goldstein's formulation of the constructionist thesis assumes the conflicting positions that experiential perception is paradigmatic of all methods of acquiring knowledge, and that knowledge is itself a kind of experience. As well as conflicting with commonsense views, his thesis is internally incoherent