This subject is quite intriguing. In the 20th century, writers such as Immanuel Velikovsky, David Rohl, and others have argued for a restructuring of Egyptian chronology on the basis that Mantheo's Kings of Eypt compilation is too long and could be shortened. Rohl, in particular, has identified Ramses II, commonly depicted in popular culture as the Pharaoh of the Exodus, with the Bibilical King Shishak I mentioned in the Bible during the reign of Rehoboam of Judah. Most of these men accept the sacking of Thebes by the Assyrian King Ashurbanipal in 664 BC as the only certain fixed anchor point; to them anything going backwards from that is not really certain. Naturally, proponents of the conventional chronology have attacked these chronologies as completely without merit. http://en.wikipedia.org/wiki/Conventional_Egyptian_chronology http://en.wikipedia.org/wiki/Egyptian_chronology http://en.wikipedia.org/wiki/New_Chronology_(Rohl)#Rohl.27s_New_Chronology http://en.wikipedia.org/wiki/Ages_in_Chaos I don't think there will ever be a definitive, widely accepted chronology, but the subject is still a fun one to study.