Chronicon anonymum ad annum 724
Chronicon anonymum ad annum 724, which is preserved in a manuscript in the British LIbrary
(BM. Add. 14643, fols. 1-57) and is sometimes referred to as Liber Calipharum, is a world chronicle written in
Syriac by an anonymous author in the 8th century CE
(
Brock, 1976).
Brock (1976) notes that
its entries are not always in chronological order. Affixed to the end of the text is something that may have been added by a later copyist
- a list of Caliphs from Mohammed to
Yezid II (r. 720-724 CE)
along with the lengths of their reigns. This list is thought to have been translated
from Arabic for a number of reasons including that it preserves the lengths of the reigns as they are counted in lunar Islamic years
(
Penn, 2015:196-197).