Finally, a king Necherôchis is listed as the founder of the Third Dynasty in the "Aegyptiaca", a history of Egypt written in the 3rd century BCE during the reign of Ptolemy II (283–246 BCE) by an Egyptian priest, Manetho. No copies of the "Aegyptiaca" have survived to this day and it is now known only through later writings by Sextus Julius Africanus and Eusebius, themselves quoted by the Byzantine scholar George Syncellus. According to these sources, the "Aegyptiaca" gave Necherôchis as the predecessor of Sesorthos or Tosorthros, both names being widely held to refer to Djoser as the "Aegyptiaca" credits Sesorthos with the invention of stone architecture. Necherôchis (Eusebius) or Necherôphes (Africanus), both likely Hellenized forms of Nebka, is said to have faced a rebellion of Libyans during his reign, but "when the moon waxed beyond reckoning, they surrendered in terror". Africanus further credits Necherôphes with 28 years of reign.