Egypt: History - A Note on Dates

A Note on Dates

All dates presented in this prehistory of Egypt are largely conjecture. The methods most often used to date artifacts and remains, namely carbon-14 and potassium-argon decay, are not very useful in calculating dates in the Lower and early Middle Paleolithic eras. Many dates given, especially those before 45,000 BC, are based largely on cross-dating with better-dated archaeological sites from around the world.