The history of Christianity in the province of Isabela is intimately linked with that of its sister provinces in the Cagayan Valley region, namely Cagayan and Nueva Vizcaya. All three provinces were just one political unit called Cagayan during the early Spanish period.

Mission stations in the area which later became settlements were founded by Augustinian and Dominican friars as early as 1717. An earlier attempt at evangelization has been made in a little place called Ituy, found in what is now Nueva Vizcaya. Through the efforts of the Augustinians and the Dominicans the faith spread through out the region. [more...]