The Protodynastic Period of Egypt (generally dated 3100 BC - 3000 BC) refers to the period of time at the very end of the Predynastic Period.
It is equivalent to the archaeological phase known as Naqada III. It is sometimes known as Dynasty 0 or the Late Predynastic Period.
The Protodynastic Period is characterised as being the time when ancient Egypt was undergoing the process of political unification, leading to a unified state during the Early Dynastic Period. Furthermore, it is during this time when the Egyptian language was first being recorded in hieroglyphs. There is also strong archaeological evidence of Egyptian settlements in southern Israel during the Protodynastic Period, which have been regarded as colonies or trading entrepôts.