Let us get it right. Human civilization (the Garden of Eden if you wish) began at the source of the Nile, it grew, developed and spread along the Nile basin up to the river's delta at its mouth on the shores of the Mediterranean Sea. What is referred to as Egypt, in ancient history essentially refers to the land of the Nile. It is important to note that, in ancient Africa, regions and distant lands, were identified or defined by their geographical features or the type of peoples who occupied those lands.
The term Egyptians just like Hebrews, does not denote a particular tribal group---but a people of who owe their ancestry to the Nile Basin (my own definition). These were peoples from differing ethno-cultural backgrounds and civilizations---but who traded, intermarried and competed for political power within the spheres of influence along the River's Basin. This intercultural dynamism, took place in the zone along the River's basin, from her source in East Africa to her Mouth in the North.
Just as Nubian cultures of the Nile influenced their Neighbors in bordering lands, beyond the Mediterranean Sea, so did those cultures also influence the civilizations of the region.
How will modern Afrika rediscover, re-evaluate, re-value and reclaim, her Nile heritage? We have to begin by mounting continuous scientific, historical and expeditions---from the source to the Mouth of the river.