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.
Within the long sweep of Egyptian history, certain events or epochs have been crucial to the development of Egyptian society and culture. One of these was the unification of Upper Egypt and Lower Egypt sometime in the third millennium B.C. The ancient Egyptians regarded this event as the most important in their history, comparable to the First Time, or the creation of the universe.