[2] Frank Yurco stated that depictions of pharaonic iconography such as the royal crowns, Horus falcons and victory scenes were concentrated in the Upper Egyptian Naqada culture and A-Group Nubia.
He further elaborated that "Egyptian writing arose in Naqadan Upper Egypt and A-Group Nubia, and not in the Delta cultures, where the direct Western Asian contact was made, which further vitiates the Mesopotamian-influence argument".
[3] According to David Wengrow, the A-Group polity of the late 4th millenninum BCE is poorly understood since most of the archaeological remains are submerged underneath Lake Nasser.
[4] Stan Hendrick, John Coleman Darnell and Maria Gatto in 2012 excavated petroglyphic engravings from Nag el-Hamdulab in Aswan, the extreme southern region of Egypt that borders the Sudan, which featured representations of boat procession, solar symbolism and the earliest depiction of the white crown with an estimated dating range between 3200BC and 3100BC.
[7] A famous depiction of the white crown is on the Narmer palette found at Hierakonpolis in which the king of the South wearing the hedjet is shown triumphing over his northern enemies.