Population growth and foreign-born population. Between 1970 and 1990, McKinney experienced moderate population growth, from 15,193 in the 1970 census, to 21,283 in the 1990 census. Since then, McKinney's rate of increase has been much more dramatic. In the 2000 census, McKinney had grown to 54,369 and to 131,117 in the 2010 census.
Egyptian Timeline: Prehistoric Egypt to the Old Kingdom The following ancient Egypt Timeline spans Prehistoric Egypt to the Old Kingdom Time Periods, dates, people, events and dynasties of ancient Egypt.
Historians divide ancient Egyptian history into 30 dynasties (3100 BC - 332 BC). A dynasty is a series of rulers belonging to the same family. Egypt's pre-dynastic era lasted until 3100 BC, when the country was united and the dynasties began to rule. PRE-DYNASTIC PERIOD: c.5500 - 3100 BC. Settlements were established beside the Nile River by Merimdeon, Tasian and Badarian.