Jacob Philipp Kulik and his Calendars

Jacob Philipp Kulik (1793-1863) was a mathematician and university professor, who taught at Lyceums in Olomouc and Graz and at the Prague University. He is known for his work in the number theory (especially his manuscript of extensive tables of prime numbers and divisors is well known). The aim of this article is to present Kulik's calendars - the part of his work in which he joined his knowledge in astronomy and number theory. He participated in creating common diaries for one year - he prepared astromical and chronometrical information for them. He also published three editions of the universal calendar, which could be very useful for lawyers, historiographers and other people, who had to work with old manuscripts.