Contrary to the methods of Spanish conquistadors who handled colonization at swordpoint, the introduction of Islam to pre-colonial Philippines and to the rest of Southeast Asia was generally achieved with minimal bloodshed. By marrying into the rich and ruling class, Muslim traders, teachers and missionaries facilitated the spread of Islam as they travelled to Java, Sumatra, Jahore, Malacca, Borneo and other nearby islands to conduct their mission. By the 13th century, most of the lands of Southeast Asia were Islamized, and pretty soon the southern part of the Philippines followed this trend during the 14th century.
But of course, this phenomenon could have not been possible without notable Muslim people who spearheaded the spread of Islam. Based on the tarsila or the genealogies, the first one who introduced Islam in the country was Tuan Mashaika, the supposed son of Jamiyun Kalisa and his wife, Indira Suga, who were both sent to Sulu by Alexander the Great (Mongcal). Tuan Masaika married the daughter of Raja Sipad of Patikol in Buansa, present-day Jolo (Scribd.com). He was followed by Karim-ul Makhdum, or simply Mukdum, a noted Arabian scholar who introduced Islam in Malacca in the middle of 14th century and continued his travel to the east. He then reached Simunol, Sulu after passing through Sambuwangan (Zamboanga) and Basilan in 1380 (Mongcal). He built the first mosque in Sulu, and he continued to preach Islam until the time of his death. Around 1390, Raja Baginda, a minor prince from Menangkabaw, Sumatra arrived with soldiers and conquered Sulu. Afterwards, in 1450, they were followed by a Jahore[->0]-born Arab explorer[->1] and religious scholar[->2] named Sayyid Abu Bakr Abirin, or simply Abu Bakr (Sultanate of Sulu- Wikipedia). Upon coming to Sulu, Abu Bakr married Paramisuli, the local dayang-dayang or princess, and daughter of his predecessor, Raja Baginda. Then, he founded the first-ever sultanate of Sulu with
Cited: "Sultanate of Sulu - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 17 Oct. 2012. . "The Spread of Islam in the Philippines." Scribd. N.p., n.d. Web. 17 Oct. 2012. .