The municipality of President Manuel A. Roxas was first created from the municipality of
Katipunan in 1965 by President
Diosdado Macapagal through Presidential Proclamation No. 177. However, its creation was questioned by Vice President
Emmanuel Pelaez, and was later reverted by the
Supreme Court of the Philippines as one of Katipunan's barangays. On June 17, 1967, through the effort of
Zamboanga del Norte Representative Alberto Q. Ubay, Republic Act No. 5077 was lapsed into law without President
Ferdinand Marcos's signature, carving out President Manuel A. Roxas from Katipunan once more. ==Geography==