The Kenneth P. Dietrich School of Arts and Sciences (Dietrich School or School of Arts and Sciences) is one of the 17 schools and colleges of University of Pittsburgh in Pittsburgh, Pennsylvania. A direct descendant of the 1787-chartered Pittsburgh Academy, and the oldest part of the university, the school serves as "the liberal arts core" of the university; some 30 departments and programs provide instruction in natural sciences, humanities, and social sciences to all students at the Oakland campus, including more than 10,000 Dietrich School undergraduates. In addition, the Dietrich School has over 1,500 graduate and professional students, over 15% of the university's post-baccalaureate student population, making it the largest graduate school in the Pittsburgh area.