As early as 1595, or 74 years after Ferdinand Magellan's landing in Homonhon (now an island barangay of Guiuan, Eastern Samar) Spanish Jesuit missionary priests from mission centers in Leyte began to evangelize the southern portion of the island of Samar. The first evangelical mission was established in Tinago, Western Samar and gradually expanded to Catubig. In 1614 Palapag was selected as the mission center of the Ibabao region or the north-eastern coast of the island; from this mission center in turn was the eastern coast of Samar subsequently evangelized. The missionaries proselytized to the inhabitants in the faith, raised stone churches, and protected the people from the Muslim predatory/piratical raids from the south. This is probably the reason why the town itself was established some distance away from the shoreline and built on a hill overlooking the northern banks of the Lo-om River. In fact, the old Catholic church convent has its own self-contained water supply: a deep dugout well lined with big blocks of ancient hewn stones located underneath the convent building itself. The major settlements then were Borongan, Bacod/Jubasan/Paric (now Dolores), Tubig (Taft), Sulat, Libas/Nonoc (now San Julian), Butag (now Guiuan) and Balangiga.