Short answer: because many tribes gathered around the fertile Nile valley.
Long answer: http://en.wikipedia.org/wiki/Ancient_Egypt
Chat with our AI personalities
from ancient Egypt
Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.Cleopatra reigned in ancient Egypt and her capital city was Alexandria.
A hierarchy is the social system in ancient Egypt
ancient Egypt emerged as a civilization at about 3200 BC.
The rulers of Ancient Egypt were the pharaohs.