Answer:
Egypt and sub- Saharan Africa
Step-by-step explanation:
During the rule of Pharaonic Egypt, Nubia was the region that separated Egypt from sub-Saharan Africa. Its territory was prodigal in riches like gold, precious stones and diorito, and extended from the first cataract of the Nile to Khartum (today in the Sudan). Then he sheltered the rich and fertile valley of the Nile, as the desert to the Red Sea in the east, and to Libya in the west.
Because of the proximity of their territories the population of Egypt and sub-Saharan Africa suffered great cultural influence from Nubia, adapting some customs and beliefs.