Islam was introduced to the region, marking a significant cultural and religious transformation. This event is estimated to have occurred in the late 15th century, with the exact year varying in historical accounts.

In the 16th century, Spanish explorers made contact with the region that would later become Sultan Kudarat as part of their efforts to explore and establish a presence in the Philippines. This contact marked the beginning of interactions between the local communities and the Spanish, which would later lead to conflicts and resistance as the Spanish sought to expand their influence in Mindanao.

During the late 17th century, Sultan Muhammad Dipatuan Kudarat, known as Sultan Kudarat, emerged as a prominent and influential leader in the area. He played a crucial role in resisting Spanish colonization and defending the autonomy of his sultanate. His leadership and diplomatic skills were key factors in maintaining the region's independence from Spanish control.

During the late 17th century, the Spanish made contact with the area that would later become Sultan Kudarat as they sought to expand their influence in Mindanao. Local Muslim leaders, notably Sultan Kudarat, fiercely resisted Spanish efforts to assert control over the region. This resistance marked a significant chapter in the history of Spanish-Moro conflicts.

With the Philippines coming under American control after the Spanish-American War and the subsequent Treaty of Paris in 1898, the region that would later become Sultan Kudarat saw significant changes in governance and administration. American colonial authorities introduced a new form of government, including the establishment of municipalities and provinces, which had an impact on the region.

The most significant event of the year was the formal establishment of Sultan Kudarat as a province of the Philippines. This transformation was realized through the passage of Republic Act No. 65 on November 22, 1973, which separated Sultan Kudarat from the province of Cotabato. This move allowed for more localized governance and administration, contributing to the province's development and autonomy.

Sultan Kudarat is known for its rich cultural diversity, with various indigenous and Muslim communities contributing to the province's unique cultural tapestry. In the present, efforts are made to preserve and celebrate this cultural heritage through festivals, traditional events, and cultural programs.