Manetho
We do not know when he was born or died. His book may have been written during the rule of Ptolemy I Soter (323–283 BC) and Ptolemy II Philadelphus (285–246 BC). The Hibeh Papyri, dated to 241/40 BC, suggests he may been writing during the rule of Ptolemy III Euergetes (246–222 BC). He wrote in the Greek language. Other works he wrote include Against Herodotus, The Sacred Book, On Antiquity and Religion, On Festivals, On the Preparation of Kyphi, and the Digest of Physics. The Book of Sothis on astrology, may also be written by him.