Derviş Mehmed el-Hasib el-Mevlevi’s annual calendar, prepared on evā’il-i Mart 1134 yevm-i ḫamīs (the 5th of March on Thursday in 1722 CE), stands as an unconventional example within the tradition of Ottoman calendars by condensing the information typically found in...
Ottoman perpetual calendars were not official calendars that astrologers had to prepare as part of their duties, unlike annual calendars. These calendars encompassed a wide range of authors, including mystics and bureaucrats. Therefore, they could vary in content and...
A “gurre-nâme,” used to determine the day of the week corresponding to the beginning of each Hijri month, appears in Ottoman literature in calendars, astronomical treatises, or independently as tables or circular forms. Our example of a circular gurre-nâme...
