Front cover image for Bāḥra ḥasāb : yazaman qwaṭarā qersāčen katārik māstāwašā gārā

Bāḥra ḥasāb : yazaman qwaṭarā qersāčen katārik māstāwašā gārā

Covers mathematical system used by Ethiopian and Coptic churches for fixing movable feasts and fasts, a perpetual calendar for these dates, a table synchronizing Ethiopian and Western calendars for AD 1261-2316, and a chronology of Ethiopian history
Print Book, Amharic, 1993 ʻā.me. [©2000]
Bahra Hassab, Koléǧvil (Minisotā), 1993 ʻā.me. [©2000]