Abstract
The goal is to study the process of interdisciplinary interaction of historical science with social, humanand natural sciences, the changing configuration of interdisciplinary fields and the redistribution ofthe intra-disciplinary hierarchy of scientific disciplinesSignificance is in the process of interdisciplinary interaction of historic sciences with such complexsciences-integrators as mathematics, informatics and institutionalization of them on the junction of quantitativehistory and historical informatics that had been stipulated besides objective inner developmentregularities of a historic science, strong influence of processes of mathematization, informatization andcomputerization on all branches of research cognition, swift growth of tendencies to the integration ofsocial and natural sciences in conditions of humanity transition from industrial society to informational.Findings – discovery is revealed in the fact that the objective character of interdisciplinary approachto the historical investigation in the second half of 20th century was linked first, with the realizing ofonly “brunch” disciplinary approach insufficiency in research theoretical mastering of historic reality andvivid inclination to integral, systematic consideration of historical objects, phenomena and processes;secondly, with difficulties in operating with immense amount of knowledge and swiftly growing flowof new information; thirdly, including mass historical sources into research circulation; fourth, with thenecessity of application parallel with descriptive, quantitative and formalized methods of analyses ofhistorical sources, especially of mass character, and effective use of new informational technologies inthe process of revising and presenting source information knowledge.