 The present-day provinces of Apayao, Benguet, Ifugao and Kalinga, as well as the highly urbanized city of Baguio, formed part of the old (pre-division) Mountain Province's representation until 1969.Since 1969, the representation of Mountain Province has been confined only to the limits of the former sub-province of Bontoc.Initially being excluded from representation in the lower house of the Philippine Legislature in 1907, the then non-Christian-majority areas of the Philippines — which included the undivided Mountain Province — were finally extended legislative representation with the passage of the Philippine Autonomy Act in 1916 by the United States Congress.