In addition to these sources, Unas was also likely mentioned in the Aegyptiaca, a history of Egypt written in the 3rd century BC during the reign of Ptolemy II (283–246 BC) by the Egyptian priest Manetho. No copies of the Aegyptiaca have survived to this day and it is known to us only through later writings by Sextus Julius Africanus and Eusebius. Africanus relates that the Aegyptiaca mentioned a pharaoh "Onnos" reigning for 33 years at the end of the Fifth Dynasty. Onnos is believed to be the hellenized form for Unas, and Africanus' 33-year figure fits well with the 30 years of reign given to Unas on the Turin canon.
In addition to these sources, Unas was also likely mentioned in the Aegyptiaca, a history of Egypt written in the 3rd century BC during the reign of Ptolemy II (283–246 BC) by the Egyptian priest Manetho. No copies of the Aegyptiaca have survived to this day and it is known to us only through later writings by Sextus Julius Africanus and Eusebius. Africanus relates that the Aegyptiaca mentioned a pharaoh "Onnos" reigning for 33 years at the end of the Fifth Dynasty Onnos is believed to be the hellenized form for Unas, and Africanus' 33-year figure fits well with the 30 years of reign given to Unas on the Turin canon.