| the period in the history of ancient Egypt, 2780–2280 b.c., comprising the 3rd to 6th dynasties, characterized by the predominance of Memphis. |
| Old Kingdom Ancient Egypt during the III-VI Dynasties, from c. 2980 to 2475 B.C. The Old Kingdom was noted as "the Age of the Pyramids," with magnificent monuments built by rulers such as Cheops. |