The historical records of ancient Egypt begin with Egypt as a unified state, which occurred sometime around 3150 BC. According to Egyptian tradition Menes, thought to have unified Upper and Lower Egypt, was the first king. This Egyptian culture, customs, art expression, architecture, and social structure was closely tied to religion, remarkably stable, and changed little over a period of nearly 3000 years.

Egyptian chronology, which involves regnal years, began around this time. The conventional Egyptian chronology is the chronology accepted during the twentieth century, but it does not include any of the major revision proposals that also have been made in that time. Even within a single work, archaeologists often will offer several possible dates or even several whole chronologies as possibilities. Consequently, there may be discrepancies between dates shown here and in articles on particular rulers or topics related to ancient Egypt. There also are several possible spellings of the names. Typically, Egyptologists divide the history of pharaonic civilization using a schedule laid out first by Manetho's Aegyptiaca (History of Egypt) that was written during the Ptolemaic era, during the third century BC.

Prior to the unification of Egypt, the land was settled with autonomous villages. With the early dynasties, and for much of Egypt's history thereafter, the country came to be known as the Two Lands. The rulers established a national administration and appointed royal governors.

According to Manetho, the first king was Menes, but archeological findings support the view that the first pharaoh to claim to have united the two lands was Narmer (the final king of the Protodynastic Period). His name is known primarily from the famous Narmer Palette, whose scenes have been interpreted as the act of uniting Upper and Lower Egypt.

Funeral practices for the elite resulted in the construction of mastaba tombs, which later became models for subsequent Old Kingdom constructions such as the Step pyramid.

The Pharaoh in ancient Egypt was the political and religious leader of the people and held the titles 'Lord of the Two Lands’ and 'High Priest of Every Temple’. The word 'pharaoh’ is the Greek form of the Egyptian 'pero’ or 'per-a-a’, which was the designation for the royal residence. The name of the residence became associated with the ruler and, in time, was used exclusively for the leader of the people.

In 3000 BCE the first dynasties appeared in Egypt with the unification of Upper and Lower Egypt. The rulers of these dynasties were equated with the gods and with the duties and obligations due those gods. As supreme ruler of the people, the pharaoh was considered a god on earth, the intermediary between the gods and the people, and when he died, he was thought to become Osiris, the god of the dead. As such, in his role of 'High Priest of Every Temple’, it was the pharaoh’s duty to build great temples and monuments celebrating his own achievements and paying homage to the gods of the land. Additionally, the pharaoh would officiate at religious ceremonies, choose the sites of temples and decree what work would be done (although he could not choose priests and very rarely took part in the design of a temple). As 'Lord of the Two Lands’ the pharaoh made the laws, owned all the land in Egypt, collected taxes and made war or defended the country against aggression.
 

Wicki

Miṣr, the Arabic and modern official name of Egypt (Egyptian Arabic: Maṣr), is of Semitic origin, directly cognate with other Semitic words for Egypt such as the Hebrew מִצְרַיִם‎ (Mitzráyim), literally meaning "the two straits" (a reference to the dynastic separation of upper and lower Egypt).^{[unreliable source?][12]} The word originally connoted "metropolis" or "civilization" and means "country", or "frontier-land".