Upper and Lower Egypt Unify under First Pharaoh
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.