Sharif ul-Hāshim, an Arab Muslim, arrived in the Sulu Archipelago to spread Islam and unify the local tribes under a Sultanate system. This foundational event initiated the establishment of the Sultanate of Sulu, which played a critical role in the history of the Philippines. Sharif ul-Hāshim was well-received by the local population and promoted Islamic teachings alongside establishing governance structures that supported both religious and political hierarchies. His influence was pivotal in the melding of Islamic culture with indigenous practices, creating a unique identity for the Sultanate that would last for centuries.

The formation of the Sultanate established Sulu as a significant center of trade and Islamic culture in Southeast Asia, connecting it with other Islamic territories in the region. It became known for its maritime prowess and cultural exchanges, significantly influencing neighboring areas. The Sultanate functioned as a political entity that provided stability and continuity in the region. It established laws, norms, and educational practices rooted in Islam, which would guide the local populace.

After its establishment, the Sultanate of Sulu interacted with Spanish colonizers and other European powers, navigating complex relationships that would shape its future. Sharif ul-Hāshim's legacy continued through his descendants, who upheld the Sultanate's influence and Islamic faith, preserving its significance in Filipino heritage and Southeast Asian Islamic history.