Essaouda:

Here's information that directly refutes your statements on Nubia:

First, here's some of the "latest findings":
http://www.homestead.com/wysinger/latestfindings3.html

Here's a timeline of Nubian civilization, apparently older and lasted longer than Egypt!

http://www.homestead.com/wysinger/mapofnubia.html
Archeological findings have shown that the founding of Kerma (first capital of Nubia) dates back to 5,000 BC The Nubian Empire pre-dates Egyptian civilization and its lifespan outlasted Egypt, Greece and Rome combined. The African army had defeated both Egyptian, Greek and Roman enemies. At the height of its power, Nubia was the center of the ancient world. The Kingdom of Kush, with its alphabet, commerce and architectural triumphs was the equal of its ancient world counterparts. As royal tombs for their rulers they built pyramids which numbered more than all those of Egypt. In the modern world, the memory of this once great empire refuses to fade into history.