Before revision: Just prior to Saharan desertification, the communities that developed south of Egypt, in what is now Sudan, were full participants in the Neolithic revolution and lived a settled to semi-nomadic lifestyle, with domesticated plants and animals.
After revision: Just prior to Saharan desertification, the communities that developed south of Egypt, in what is now Sudan, were full participants in the Neolithic Revolution and lived a settled to semi-nomadic lifestyle, with domesticated plants and animals.