Adelphi University is a private, nonsectarian university located in Garden City, in Nassau County, New York. It is the oldest institution of higher education on Long Island. Adelphi University began with the Adelphi Academy, founded in Brooklyn, New York in 1863. The academy was a preparatory school located at 412 Adelphi Street, in the Fort Greene neighborhood of Brooklyn, but later moved to the corner of Lafayette Avenue and Clifton Place, in Clinton Hill. It was formally chartered in 1869 by the Board of Trustees of the City of Brooklyn for establishing "a first class institution for the broadest and most thorough training, and to make its advantages as accessible as possible to the largest numbers of our population." One of the teachers at the Adelphi Academy was Harlan Fiske Stone, who later served as the Chief Justice of the United States. In 1893, Dr. Charles Herbert Levermore was appointed as the head of Adelphi Academy. Seeking to establish a liberal arts college for the City of Brooklyn, Levermore received a charter from the Board of Regents of the State of New York, officially establishing Adelphi College on June 24, 1896.