Isabela (province)
Isabela is the second largest province of the Philippines, and the largest in the island of Luzon in terms of land area. Its capital is the city of Ilagan. Situated within the Cagayan Valley region, it is bordered by the provinces of Aurora on the southeast, Quirino and Nueva Vizcaya on the southwest, Ifugao and Mountain Province on the west, Kalinga on the northwest, Cagayan on the north and the Pacific Ocean on the east.
This primarily agricultural province is the rice and corn granary of Luzon due to its plain and rolling terrain. In 2012, the province was declared as the country's top producer of corn with 1,209,524 metric tons.
Isabela is the 10th richest province in the Philippines in 2011, the only province of Northern Luzon to be included in the list. The province has four trade centers in the cities of Ilagan, Cauayan, Santiago and the municipality of Roxas.
History
Prior to 1856, the Cagayan Valley was divided into only two provinces: Cagayan and Nueva Vizcaya. The Province of Cagayan at that time consisted of all towns from Tumauini to Aparri in the north. All other towns from Ilagan southward to Aritao comprised the Province of the old Nueva Vizcaya. In order to facilitate the work of the Catholic missionaries in the evangelization of the Cagayan Valley, a royal decree was issued on May 1, 1856 creating the Province of Isabela consisting of the towns of Gamu, Old Angadanan (now Alicia), Bindang (now Roxas) and Camarag (now Echague), Carig (now Santiago City) and Palanan, all detached from the Province of Nueva Vizcaya; while Cabagan and Tumauini were taken from the Province of Cagayan. The province was placed under the jurisdiction of a governor with Ilagan as the capital seat, where it remains up to present. It was initially called Isabela de Luzon to differentiate from other places in the Philippines bearing the name of Isabela. The new province was named in honor of Queen Isabella II of Spain.