Pre-Dynastic Period about 4000-3400 B.C.
Accession of Menes and Beginning of Egyptian History 3400 B.C.
Early Dynastic Period, I and II Dynasties 3400-2980 B.C.
Old Kingdom
III Dynasty 2980-2900 B.C.
IV Dynasty 2900-2750 B.C.
V Dynasty 2750-2625 B.C.
VI Dynasty 2625-2475 B.C.