text: History The earliest evidence of human activity in the College Park area was found at an archeological site just south of Archives II. Projectile points of Clagett and Vernon styles dating from 3000 to 2600 B.C. were recovered, a notable find given their location away from a river. This finding together with other similar ones indicate that the native American population became more sedentary in the Late Archaic period as the availability of local food supply increased, and social complexity grew. By the time Europeans first arrived and colonized the region in the early 17th century, the various native American groups had aligned themselves into a chiefdom under the Piscataway people.
  Throughout the 17th and 18th centuries, the European settlers lived on large plantations, some holding the original grants under Lord Baltimore. In College Park, there are records for Toaping Castle, a land grant to Col. Isaac Walker from about 1745 in the area between Branchville, Greenbelt, and Berwyn Heights, and for the Calvert family's Riversdale, which included parts of South College Park. One of the oldest buildings in the city, the Old Parish House dating from 1817 was initially a farm building in the latter estate.
  19th century
  The oldest standing building in College Park is the Rossborough Inn, whose construction was completed in 1803. The forerunner of today's University of Maryland was chartered in 1856 as the Maryland Agricultural College, and would become a land grant college in February 1864.