The Old Kingdom is not as much a breach with the Early Dynastic Period as a continuation of it. The kings of the 4th Dynasty are believed to be descendants of Huni, the last king of the 3rd Dynasty. The Turin King-list, in fact, lists all kings from the first five dynasties without any further internal distinction. This means that the composers of the list considered these kings as belonging to a single group.
From a cultural, political and religious point of view, however, the 4th Dynasty has brought about several changes that set it apart from the first three dynasties
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