Abushakir; computational treatise, “Sea of computation”

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GG-032

f. Ir: ኣቡሻክር /ባህረ-ሃሳብ [᾽Abušakər Bahrä-hasab]

Michael Gervers (researcher)

Witold Witakowski (data contributor)

Abū Šakir b. Abī l-Karim Buṭrus b. al Muhadhdhib Ibn ar-Rāhib (c. 1200-95, Egypt) (author)

Abba Wäldä Tənśa᾽e (f. IIv,4) (scribe)

Abba Täwäldä Mädḫən (f. 35ra,4fb, 35rb,6); who gave the book to the Church of Gwənd Gwənde (f. 40vb,6-4 fb; repeated f. 45vb,5-1 fb); (owner/donor)

Date note: Date is circa 1755 because in the list of the kings of Ethiopia, the death of the last king, Iyassu (II), 1730-1755, is mentioned, f. 37ra; Numerous tables and circles being part of the computational technique applied; f. IIr: beginning of a sälam written upside down; scribble; f. IIv: beginning of a prayer and an unfinished drawing; f. 46r empty

Number of folios: 2 (I-II), 47, European foliation; Number of quires: 11 (?); Number of columns of the text: 1-2; (but most of the folios are not covered with text, but with computational tables and circles); Number of lines in columns: varying: 30-44

Computus

Ethiopia

Tigray