WHo first setteled in Egypt and why?

Answer 1

The Nile Valley has been a site of continuous human habitation since at least the Paleolithic. Traces of these early peoples appear in the form of artifacts and rock carvings along the terraces of the Nile and in the desert oases. In the 10th millennium BC, a grain-grinding culture using the earliest type of sickle blades had been replaced by another culture of hunter-gatherers and fishers using stone tools. Climate changes and/or overgrazing around 8000 BC began to desiccate the pastoral lands of Egypt, eventually forming the Sahara. Early tribal peoples migrated to the Nile River where they developed a settled agricultural economy and more centralized society.[4]

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Answer 2

Atlanteans, because that's where they ended up by boat after the Earth reversed direction and polarity almost 10,000 years ago.
This natural disaster is suppsed to happen again, (according to some), in the year 2012.