owns a number of works on arithmetic, the theory of chronology, cosmography and geography: "Anania Shirakatsi's mathematics - about weights and measures", "Questions and Solutions" (a collection of arithmetic problems), a treatise on the calendar and cosmography, "Geography" (“Ashkharatsuyts”, previously attributed to Movses Khorenatsi). model, but after the death of Catholicos Anastas, his work remained unclaimed. created a fixed calendar according to Rome. In Armenia, they used a mobile solar calendar: all years consisted of 365 days (there were no leap years), due to which the beginning of the year and church holidays gradually moved through the seasons. historians know that Catholicos Anastas (662-668) instructed A. engaged in educational activities and taught "the science of numbers."įrom the messages of the arm. Seeing that he "did not know all the science", he went to K-pol, from there to Trebizond, where the famous Greek scientist Tikhik (Tyuhik), "full of wisdom and versed in Armenian writing" became his teacher. IV Armenia for learning from the mathematician Christosatur. Through Theodosiopolis (Karin) he arrived in prov. Having studied the Holy Scripture and Arm. Sh.'s brief autobiography (where he calls himself "Shirakatsi" (Shirak), as well as "Shirakavantsi" and "son of Ioannes Shirakayni"). The initial period of his life is known from A. scientist, mathematician, cosmographer and paschal connoisseur, writer.
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