Djer (or Zer or Sekhty) is considered the third pharaoh of the First Dynasty of ancient Egypt in current Egyptology. He lived around the mid 31st century BC and reigned for c. 40 years. A mummified forearm of Djer or his wife was discovered by Egyptologist Flinders Petrie, but was discarded by Émile Brugsch.
The Abydos King List lists the third pharaoh as Iti, the Turin King List lists a damaged name, beginning with It..., while Manetho lists Uenéphes. Jürgen von Beckerath in the Handbuch der ägyptischen Königsnamen (1999) translates the hieroglyphs of the name Djer as "Defender of Horus."
Although the Egyptian priest Manetho, writing in the third century BC, stated that Djer ruled for 57 years, modern research by Toby Wilkinson in Royal Annals of Ancient Egypt stresses that the near-contemporary and therefore, more accurate Palermo Stone ascribes Djer a reign of "41 complete and partial years." Wilkinson notes that years 1–10 of Djer's reign are preserved in register II of the Palermo Stone, while the middle years of this pharaoh's reign are recorded in register II of Cairo stone fragment C1.
Djer's reign was preceded by a regency controlled by Neithhotep, possibly his mother or grandmother.
The evidence for Djer's life and reign is:
Tomb in Umm el-Qa'ab, Abydos
Seal prints from graves 2185 and 3471 in Saqqara
Inscriptions in graves 3503, 3506 and 3035 in Saqqara
Seal impression and inscriptions from Helwan
Jar from Turah with the name of Djer
UC 16182 ivory tablet from Abydos, subsidiary tomb 612 of the enclosure of Djer
UC 16172 copper adze with the name of Djer
Inscription of his name (of questioned authenticity, however) at Wadi Halfa, Sudan
The inscriptions, on ivory and wood, are in a very early form of hieroglyphs, hindering complete translation, but a label at Saqqarah may depict the First Dynasty practice of human sacrifice. An ivory tablet from Abydos mentions that Djer visited Buto and Sais in the Nile Delta. One of his regnal years on the Cairo Stone was named "Year of smiting the land of Setjet", which often is speculated to be Sinai or beyond.