The Associate Reformed Presbyterian Church (ARPC), as it exists today, is the remnant of a small denomination, which was formed from the Synod of the South, a division of the Associate Reformed Church. The original Associate Reformed Church resulted from a merger of the Associate Presbytery (from the Seceder tradition of the 18th century) and most of the Reformed Presbytery (from the Covenanter tradition of the 17th century) in Philadelphia in 1782. It is one of the oldest of the United States' theologically and socially conservative denominations.