According to recorded history, the Augustinians came to Pangasinan in 1575 and established the missions of Lingayen, Bagnotan (which is now called Dagupan), and Santa Monica (now called Manaoag) as part of their evangelization efforts.
Because the Pangasinenses prefer to believe in paganism, the missionaries decided to leave. But this was just the start of the evangelization of the missionaries in the province. In fact, there were also undocumented missionaries serving in Pangasinan.
In addition, the Franciscans made an effort to spread the gospel across the region. However, their efforts were in vain, since they were unable to convert the residents of Pangasinan. The Dominican Missionaries built a mission at Binalatongan (now called San Carlos) in 1587, under the patronage of its founder, Saint Dominic De Guzman.
The town of Mangaldan, which is nine (9) kilometers from Santa Monica, was a “visita” for the Augustinian monastery of Lingayen. It is also the place where the Dominicans began their missionary work.
Given that Lingayen was 30 kilometers from the Augustinian convent of Santa Monica, the Augustinians were happy to give up its care to Bishop Diego de Soria, OP, who gave it to Fr. Juan de San Jacinto, OP, Vicar of Mangaldan. As a result, Fr. de San Jacinto had the idea of creating a chapel dedicated to Our Lady of the Most Holy Rosary when he accepted this post in 1605.
The apparition of the Blessed Virgin Mary
Manaoag got its name from a story about an appearance of the Blessed Virgin Mary to a farmer on a treetop, according to local lore.
The story goes that the Virgin of the Most Holy Rosary and her most pious Son, the Child Jesus, arrived in the middle of a cloud. She stated her desire for a shrine to be built in her honor in the same location so that her followers might travel there in the future and ask for her maternal protection.
This apparition of the Virgin of the Rosary became famous in other parts of the globe. People from all over the world would go to the spot where the apparition occurred to see it for themselves.