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.
Sovereignty of the Philippines
As a consequence of its defeat, Spain transferred its rights over the Philippine archipelago to the U.S., with the Philippines ceasing to be a colony of Spain and becoming a colony of the U.S. On December 10, 1898, the Treaty of Paris was signed between Spain and the United States, ending the Spanish–American War. In article III of this treaty, Spain ceded the Philippines to the United States. Felipe Agoncillo, who had been assigned by Aguinaldo as Ambassador to the United States, had traveled to Paris but had been refused admission to the conference. He worked hard to prevent the ratification of the treaty by Spain, but failed. Returning to Paris, he sent a message to Aguinaldo about the refusal of the United States and other foreign powers to recognize the independence of the Philippines.