Persecution of Muslims
The Philippines is predominantly a Christian society with a complicated history of relations between Islam and Christianity. Despite historic evidence of Islamization spreading throughout the islands in the 13th–16th centuries, the archipelago came under Spanish rule in the 16th century. The Spanish proselytized many natives, and labelled those who remained Muslims as "Moro", a derogatory term recalling the Moors, an Islamic people of North Africa who occupied parts of Spain for several centuries. Today, this term "Moro" is used to refer to the indigenous Muslim tribes and ethnic groups of the country. When the Spanish came to the Philippine islands, most of the natives in Luzon and Visayas were pagans with Muslim minorities, and while Spanish proselytized many natives, many Muslims in Luzon and Visayas were not exempted by the Spaniards from the Spanish Inquisition, wherein Muslims to become Catholics or die for their faith. Those who remained Muslims are only the natives of Mindanao and Sulu which the Spaniards did not invade or had control of only briefly and partially.
Spanish language
Spanish was an official language of the Philippines from the beginning of Spanish administration in 1565 to a constitutional change in 1973. During Spanish colonization (1565–1898), it was the language of government, trade and education, and spoken as a first language by Spaniards and educated Filipinos. In the mid-nineteenth century, the colonial government set up a free public education system with Spanish as the medium of instruction. This increased use of Spanish throughout the islands led to the formation of a class of Spanish-speaking intellectuals called the "Ilustrados". By the time of Philippine independence in 1898, around 70% of the population had knowledge of Spanish, with 10% speaking it as their first and only language and about 60% of the population spoke it as their second or third language.