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.
Cordillera Central (Luzon)
The Philippines, named after King Philip II of Spain in 1618, was already of interest to Spain before the Spaniards even reached the land. In 1565, reports of huge gold mines in the Cordillera reached the Viceroy of Mexico, which led to the first official Spanish expedition to the Cordillera in 1576. King Philip III, waging the Thirty Year War which needed funding, sent orders for large expeditions to the Philippines.
In 1620, Captain Garcia de Aldana Cabrera offered the resisting Igorot tribal leaders clemency if they were willing to accept Catholic religion, obey the Spanish government and pay a fifth of all their mined gold to the Spanish King. They refused and the Spanish conquerors built forts and organized military troops to start the exploitation of the gold mines.