To compile samples (sets of poets, composers, painters, etc.) characterizing the development of different fields of creative activity, it is necessary to overcome two methodical difficulties. First, it is needed to choose due source (e.g., literary or musical encyclopedia) containing the raw data for further studies. Second, the task of averaging these data arises, because usually these data are described by so-called ‘stable non-Gaussian distributions.’ Nevertheless, both problems were solved, and evolutionary curves were built, for some national schools of art (creativity of 5982 composers belonging to 40 national schools, 2741 theatrical persons representing 9 national schools, etc.).