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If the Mongols did not attack java, Islam will spread North to Luzon and Sulu much earlier than OTL because the Hindu revival of Majapahit which delayed the spread of Islam does not happen- I forgot to say that both Luzon and Sulu traded with Pasai where islam first penetrated in South East Asia since an epic there mentions sumadera or pasai which means Islam would have penetrated parts of Song China sooner than later in what was OTL..