The place to start learning about the history, religion, and culture of Ethiopia and Eritrea.


The computus is the method of determining the date of Easter and thus the moveable feasts of the liturgical year. Since the date of Easter is nominally related to the Jewish calendar, and the Jewish calendar is a lunar calendar, it is necessary to perform a series of calculations to determine the date according to the solar calendar used by the Church. Fundamental to these are a series of cycles, the longest of which is 532 years, and from these cycles a number of constants: ʿāmata qamar (ዓመተ፡ ቀመር፡), the position within the cycle of 532 yearsmanbar (መንበር፡), the position