Any textbook of history tells us that the Spaniards arrived in the Philippines in 1565
after many previous attempts. They contacted the Filipinos first in the Visayas and
from there they proceeded to the north. This time they were able to stay in. In
1571 Manila was founded and from there started what is called the conquest or
pacification of Luzon.
The following year the coastal area of Cagayan was explored by the young
Captain Salcedo. He entered the Cabicungan and Abulug rivers and finally
the Rio Granade, the biggest in the Islands, which was baptized as Rio
Tajo. But he did not go inland, since the area looked from the sea and the
rivers as very mountainous and forbidding. The "Last of the Spanish
Conquistadors, " the dashing Salcedo, retired to the Ilocos region where
he died in Vigan on March 11, 1576 at the ripe age of 27! Ten years
later a Japanese fleet entered the Cagayan River and tried to settle
there. News of the arrival of the unwelcome visitors reached Manila and
Governor General Gonzalo Ronquillo sent "Captain Pablo Carrion with a
group of soldiers in 1581 to drive away from Cagayan soil the Japanese
pirate Tayfusa and his flotilla." Carrion succeeded in his mission and
established a settlement in 1582 on the right hand side of the Rio Grande, 15
kilometers from the sea to be known as the city of Nueva Segovia, Lallo
(Lal-loc) or Bagumbayang, eventually the capital of the Cagayan province, until
it was replaced as the seat of the provincial government by Tuguegarao in 1839 (1).
Of course, no Spanish expedition or foundation could take place without the close collaboration of church and state, and so two priests were sent with the Carrion expedition, to serve as chaplains and perhaps to start a new center of evangelical activity. They were Fathers Cristobal de Salvatierra, a Dominican who had arrived in Manila with the first bishop the Dominican Domingo Salazar, whom he served as "provisor" or Vicar general, and Fr. Francisco Rodriguez and Augustinian. The two religious were soon discouraged by the resistance of the natives to receive the preaching of the Gospel, and the bad example set by the Spaniards in the area (soldiers and "encomenderos" alike) and decided to return to Manila. (1 b). In terms of a conquest, Carrion did not find it difficult to submit to the Spanish crown the different ethnic groups living in the area from he north all the way down to Tuguegarao, the flat region. The towns of Pata, Cabicungan, Masi, Abulug, Camalaniugan, Buguey and others voluntarily accepted to be under the King of Spain in the referendum conducted in 1599 (1c). The conquest of the rest of the province would be a different story. The town of Nueva Segovia would give the name to the entire Cagayan Valley which came to be known as the province of Nueva Segovia (from the Caraballos in the south to the China sea in the north, the Pacific Ocean to the east and the Cordilleras or Sierras, dividing the province from the Ilocos, to the west. The Valley was irrigated by the majestic Ibanag River, also known as Tajo and Rio Grande de Cagayan, the Magat and the Rio Chico, some times called Lobo). For a long time (till 1739), the only way to reach Bojeador cape and then by going upstream in the Rio Grande. The natural divisions of the Valley were the northern coastal fringe, and, southwards, the Itaves, the Siguiran, and the Irraya, the Diffun, the Ituy and Paniqui regions. Only in 1841 a division of the Valley or Nueva Segovia was carried out with the creation of the province of Nueva Vizcaya in the south. The Valley would de divided a new in 1856, resulting in three provinces with new boundaries, when the province of Isabela de Luzon was created.