Why is narmer a legendary hero in ancient egyptian history

Narmer was the 32nd-century B.C. founder of Pharaonic Egypt and celebrated throughout the region's ancient period for uniting Upper and Lower Egypt. As the king of Upper Egypt, Narmer led a campaign sometime around 3200 B.C. to conquer the northern kingdom of Lower Egypt, though this date is uncertain

Idon’t know i’m doing this for points