Ann Arbor is a city in the U.S. state of Michigan and the county seat of Washtenaw County. It is the state's seventh largest city with a population of 114,024 as of the 2000 Census, of which 36,892 (32%) are university or college students. The city, which is part of the Detroit-Ann Arbor-Flint, MI CSA, is named after the spouses of the city's founders and for the stands of trees in the area.
Ann Arbor is home to the University of Michigan, which moved from Detroit to Ann Arbor in 1837. As the dominant institution of higher learning in the city and one of the top public universities in the world, the university provides Ann Arbor with a distinct college-town atmosphere. The university shapes Ann Arbor's economy significantly as it employs about 38,000 workers, including about 7,500 in the medical center.
The city's economy is also centered on high-technology, with several companies drawn to the area by the university's research and development money, and by its graduates. On the other hand, Ann Arbor has increasingly found itself grappling with the effects of sharply rising land values and gentrification, as well as urban sprawl stretching far into the outlying countryside. Ann Arbor was founded in 1824 by land speculators John Allen and Elisha Rumsey.
On May 25, 1824, the town plat was registered with Wayne County as "Annarbour"; this represents the earliest known use of the town's name. There are various accounts concerning the origin of the settlement's name; one states that Allen and Rumsey decided to name it for their spouses, both named Ann, and for the stands of burr oak in the 640 acres (260 ha) of land they had purchased for $800 from the federal government. Regional Michigan Ojibwa named the settlement kaw-goosh-kaw-nick, after the sound of Allen's saw mill.