Before Spanish colonization, the Filipino people had their own culture and engaged in informal education through interaction, observation, and imitation rather than a structured school system. When the Spanish arrived, they introduced a curriculum focused on religion, reading, writing, and Spanish rule to promote Catholicism and colonial control. The Americans later established a curriculum based on their own ideas and values, adding subjects like English, geography, and arithmetic but prohibiting compulsory religious education. Multiple reforms expanded offerings over time, though the Japanese occupation during World War 2 disrupted education through a curriculum promoting Japanese interests that replaced English.