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 in the Philippines
Spanish was the official language of the Philippines from the beginning of Spanish rule in the late 16th century, through the conclusion of the Spanish–American War in 1898. It remained, along with English, as co-official language until 1987. It was at first removed in 1973 by a constitutional change, but after a few months it was re-designated an official language by presidential decree and remained official until 1987, with the present Constitution re-designating it instead as an "optional and voluntary language".