A campus is traditionally the land on which a college or university and related institutional buildings are situated. Usually a college campus includes libraries, lecture halls, residence halls, student centers or dining halls, and park-like settings. A modern campus is a collection of buildings and grounds that belong to a given institution, either academic or non-academic.

The tradition of a campus began with the medieval European universities where the students and teachers lived and worked together in a cloistered environment. The notion of the importance of the setting to academic life later migrated to America, and early colonial educational institutions were based on the Scottish and English collegiate system. The campus evolved from the cloistered model in Europe to a diverse set of independent styles in the United States.

Sometimes the lands on which company office buildings sit, along with the buildings, are called campuses. The Microsoft Campus in Redmond, Washington, is a good example of this usage. Hospitals and even airports sometimes use the term to describe the territory of their respective facilities. The word campus has also been applied to European universities, although most such institutions are characterized by ownership of individual buildings in urban settings rather than park-like lawns in which buildings are placed.

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