The articles contains a transliteration of the two existing handwritten accounts (two autographs and a copy) of Juliusz Slowacki's 'Future National Holidays', presents an editorial history of the 'mistic calendar' and attempts to settle the relationship between its two versions. Finally, as a result of the analyses, it gives a new (different in detail form those to date) editing of the two versions of the calendar.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.