Princeton Theological Seminary (PTSem), officially The Theological Seminary of the Presbyterian Church, is a private school of theology in Princeton, in the U.S. state of New Jersey. Established in 1812, it is the second-oldest seminary in the United States, founded under the auspices of Archibald Alexander, the General Assembly of the Presbyterian Church (USA), and the College of New Jersey. It is also the largest of ten seminaries associated with the Presbyterian Church.