The Old Kingdom is the period in the third millennium BC when Egypt attained its first continuous peak of civilisational complexity and achievement (the first of three so-called "Kingdom" periods which mark the high points of civilization in the Nile Valley), spanning the period when Egypt was ruled by the Third Dynasty through the Sixth Dynasty (2630–2151 BC). Many Egyptologists also include the Memphite Seventh and Eighth Dynasties in the Old Kingdom as a continuation of the administration centralised at Memphis. The Old Kingdom was followed by a period of disunity and relative cultural decline referred to by Egyptologists as the First Intermediate Period -- or, as the Egyptians called it, the "first illness."

The royal capital of Egypt during the Old Kingdom was located at Memphis, where Djoser established his court. The Old Kingdom is perhaps best known, however, for the large number of pyramids which were constructed at this time as pharaonic burial places. For this reason, the Old Kingdom is frequently referred to as ""the Age of the Pyramids"".

Twenty-seventh Dynasty
Old Kingdom
Early dynastic: Upper Egypt
Fourteenth Dynasty