King Menes/Narmer unified the two different Kingdoms. Presumably he did this through conquest.
Upper Egypt and wanted to unify Upper and Lower Egypt so he wore a double crown.
Upper Egypt and Lower Egypt
The person who started the tradition of a pharoah wearing the double crown was Narmer, who united upper and lower Egypt.
King Menes is credited with the unification of Egypt, as the first pharaoh. King Narmer is considered by some to be the unifier of Egypt and founder of the First Dynasty, and therefore the first pharaoh of Unified Egypt.
The crowns of upper and lower Egypt were combined because King Menes combinded upper and lower Egypt. He decidd to combine upper and lower Egypt and the crowns.
He lived some where in lower Egypt. But lower Egypt is upper Egypt because upper is lower and lower is upper.
Menes married a woman from the other side of Egypt (Lower I do believe).
Lower Egypt is the top and to the north, Upper Egypt is the bottom and to the south.
The two regions of Egypt are called Upper and Lower Egypt! I hope I helped
Lower Egypt; it is in the north, while Upper Egypt is in the south.
Upper Egypt is up river from lower Egypt.
Although Upper Egypt is actually the southern part of Egypt on a compass, it is called Upper Egypt because its elevation is higher than Lower Egypt which is the northern part of Egypt on a compass but has lower elevation and is therefore is called Lower Egypt.