If changes are needed, the RN or Therapist instructs in the changes needed. The skilled need then becomes supervising and skilled assessment for accuracy, compliance, necessary updates or changes, side effects, infection, complications, etc. These do not justify long term continued care however.
Main article: Natufian culture. The second period, Mesolithic 2, is also called the Natufian culture. The change from Mesolithic 1 to Natufian culture can be dated more closely. The latest date from a Mesolithic 1 site in the Levant is 12,150 BC. The earliest date from a Natufian site is 11,140 BC.
The Greeks, however, did not call these people Nubians or Kushites, as we do today; they called them Aithiopes (Ethiopians), which in Greek meant Burnt-Faced Ones.. They knew perfectly well that Nubians were black-skinned, as are the Sudanese of the same regions today. During the 1840s, the great German egyptologist, Karl Richard Lepsius (1810-1884) led an expedition to record the monuments of Egypt and Sudan for the King of Prussia.