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Origin

Hieroglyphs may have emerged from the preliterate artistic traditions of Egypt. For example, symbols on Gerzean pottery from c. 4000 BC have been argued to resemble hieroglyphic writing.

Proto-writing systems developed in the second half of the 4th millennium BC, such as the clay labels of a Predynastic ruler called " Scorpion I " (Naqada IIIA period, c. 33rd century BC) recovered at Abydos (modern Umm el-Qa'ab) in 1998 or the Narmer Palette (c. 31st century BC).

The first full sentence written in mature hieroglyphs so far discovered was found on a seal impression in the tomb of Seth-Peribsen at Umm el-Qa'ab, which dates from the Second Dynasty (28th or 27th century BC). Around 800 hieroglyphs are known to date back to the Old Kingdom, Middle Kingdom and New Kingdom Eras. By the Greco-Roman period, there were more than 5,000.

Scholars have long debated whether hieroglyphs were "original", developed independently of any other script, or derivative. Original scripts are very rare.

Previously, scholars like Geoffrey Sampson argued that Egyptian hieroglyphs "came into existence a little after Sumerian script, and, probably, invented under the influence of the latter", and that it is "probable that the general idea of expressing words of a language in writing was brought to Egypt from Sumerian Mesopotamia ". Further, Egyptian writing appeared suddenly, while Mesopotamia had a long evolutionary history of the usage of signs—for agricultural and accounting purposes—in tokens dating as early back to c. 8000 BC.

However, more recent scholars have held that "the evidence for such direct influence remains flimsy" and that "a very credible argument can also be made for the independent development of writing in Egypt..." While there are many instances of early Egypt-Mesopotamia relations, the lack of direct evidence for the transfer of writing means that "no definitive determination has been made as to the origin of hieroglyphics in ancient Egypt". Since the 1990s, the above-mentioned discoveries of glyphs at Abydos, dated to between 3400 and 3200 BCE, have shed further doubt on the classical notion that the Mesopotamian symbol system predates the Egyptian one. A date of c. 3400 BCE for the earliest Abydos glyphs challenges the hypothesis of diffusion from Mesopotamia to Egypt, pointing to an independent development of writing in Egypt.

Rosalie David has argued that the debate is moot since "If Egypt did adopt the idea of writing from elsewhere, it was presumably only the concept which was taken over, since the forms of the hieroglyphs are entirely Egyptian in origin and reflect the distinctive flora, fauna and images of Egypt's own landscape." Egyptian scholar Gamal Mokhtar argued further that the inventory of hieroglyphic symbols derived from "fauna and flora used in the signs are essentially African" and in "regards to writing, we have seen that a purely Nilotic, hence African origin not only is not excluded, but probably reflects the reality."