The First Dynasty of Egypt, beginning around 3100 BCE, comprised the initial line of kings to rule a unified Egyptian state following the unification of Upper and Lower Egypt, attributed to the king Narmer as depicted on the Narmer Palette found at Hierakonpolis. With its capital at Thinis, the dynasty established centralized governance over the Nile Valley. Radiocarbon dating places the accession of Hor-Aha, the dynasty's second king, between approximately 3111 and 3045 BCE. The dynasty established administrative and cultural foundations for three millennia of pharaonic rule.