Overview
Upper Egypt ( , shortened to , , locally: ; ) is the southern portion of Egypt and is composed of the Nile River valley south of the delta and the 30th parallel N. It thus consists of the entire Nile River valley from Cairo south to Lake Nasser (formed by the Aswan High Dam).
In ancient Egypt, Upper Egypt was known as tꜣ šmꜣw, literally "the Land of Reeds" or "the Sedgeland", named for the sedges that grow there.
It is believed to have been united by the rulers of the supposed Thinite Confederacy who absorbed their rival city states during the Naqada III period (c. 3200–3000 BC), and its subsequent unification with Lower Egypt ushered in the Early Dynastic period. Upper and Lower Egypt became intertwined in the symbolism of pharaonic sovereignty such as the Pschent double crown. Upper Egypt remained as a historical region even after the classical period.
Geography
Upper Egypt is between the Cataracts of the Nile beyond modern-day Aswan, downriver (northward) to the area of El-Ayait, which places modern-day Cairo in Lower Egypt. The northern (downriver) part of Upper Egypt, between Sohag and El-Ayait, is also known as Middle Egypt.
In Arabic, inhabitants of Upper Egypt are known as Sa'idis and they generally speak Sai'idi Egyptian Arabic.
From Wikipedia (CC BY-SA 4.0).