In 1920, long before Matanao was formally created into a municipality, Buas had already existed (representing Matanao) as a barangay of Santa Cruz inhabited by tribal minorities, the Blaans ("Bilaan") with Datu Edu Gamban as their recognized leader. In 1927, migrants from the Visayas led by the late Rosendo Javelona and his family came to the place. Protestantism was spread by one Pastor Diamonon through the Javelonas. Ranchers also invaded the place and have for themselves large homesteads. Ten years later, sometime in 1937, scores of Cebuanos came. Among them were Roman Albarracin, Pablo Chavez and Crispin Puerto and their kins. The next batch of Cebuanos came in 1940′s including the Famor Clan. The clan introduced Catholicism in the area and a chapel was built giving honor to the present patron Saint Senor San Miguel, the Archangel.