reversed its ruling from the previous year, and upheld the constitutionality of RA 9355 and the creation of Dinagat Islands as a province. On June 19, 1965 the Philippine Congress approved Republic Act No. 4221 dividing the province of Samar into three provinces: Northern Samar, Eastern Samar, and Western Samar. On June 21, 1969, Western Samar was renamed Samar. Guimaras first gained its status as a sub-province of Iloilo by virtue of R.A. 4667, which was enacted by Congress on 18 June 1966. It was proclaimed as a regular and full-fledged province on 22 May 1992 after a plebiscite was conducted to ratify the approval of its conversion. The province of Lanao was divided into Lanao del Norte and Lanao del Sur through Republic Act No. 2228 on May 22, 1959. The former province of Cotabato was once the largest in the Philippines. In 1966, South Cotabato was created as a separate province. On November 22, 1973, by virtue of Presidential Decree No. 341, what remained of the old Cotabato was further divided into the provinces of North Cotabato, Maguindanao, and Sultan Kudarat. North Cotabato was later renamed Cotabato through Batas Pambansa Blg. 660[3] approved on December 19, 1983. Prior to 1981, only includes results from the City of Manila. Metro Manila was created in 1975, prior to that almost all of Manila was a part of Rizal, with Valenzuela a part of Bulacan, with the city of Manila independent. Quirino province acquired its juridical personality as a result of the division of the provinces of Nueva Vizcaya and Isabela on June 18, 1966 under RA 4734. Quirino, named after the late president Elpidio Quirino, was created as a sub-province of Nueva Vizcaya in 1966. It became a full province in 1971. The province of Davao Occidental was created from the comprising five of the eight municipalities that constitute the 2nd district of Davao del Sur by the virtue of RA No. 10360 was signed by President Benigno Aquino III on January 14, 2013. Following the passage of the said charter province, a plebiscite was held on October 28, 2013, coinciding with the Barangay elections were held on the said date; and the majority of the votes cast by votes were "Yes", ratifying the province, while "No" is the very few number of voters' cast, about on opposing the said creation. For Vice-President Notes In 1949, two candidates from the