Answer:
The answer is Narmer. He was the first king to unify the country pacefully as well. My guess as to why we don't know too much about these kingdoms is because there just isn't too much information available from the time about these kingdoms. There are a lack of primary sources.
Explanation:
Narmer was the first king of Egypt to unify the country peacefully (beginning of the 1st dynastic period).
In lots of different ways actually
