 It is widely assumed that by this time, Kumalarang has either ceased to exist as a kingdom or was eventually broken up and its Yakan inhabitants forced to migrate emmasse towards the hinterlands.The Yakans, having retreated from any considerable direct contact with the invading Tausugs, have retained their ancient animist beliefs in large measure, only embracing Islam at a much later date.Islam is said to have started in the Philippines in 1380 but some scholars believe that Islam spread in some areas of the archipelago during the early 13th century.