Columbia Grammar and Preparatory School ("Columbia Prep," "CGPS") is the oldest non-sectarian private school in the United States, located on the Upper West Side of Manhattan, in New York City, New York. It was founded in 1764 by Columbia University in order to properly prepare incoming freshmen in the fields of English, Greek, and Latin grammar. By 1865, the school had grown substantially and was no longer necessary to the university, thus disassociating itself from the university.
The school was originally known as Columbia Grammar School, adding preparatory in the 1970s. While grammar and preparatory have differing connotations, the entire school is known by its full name.
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