In 1942, occupied by the Japanese Imperial forces in the province of Eastern Davao
In 1945, beginning the Battle of Davao from the combined forces of the British, Australian, Dutch and the Filipino troops of the 6th, 101st, 102nd, 103rd, 104th, 106th, 107th and 110th Infantry Division of the Philippine Commonwealth Army and 10th Infantry Regiment of the Philippine Constabulary was supported by the recognized Davaoeño guerrilla fighter units by the attack to the Japanese Imperial forces during the liberation in Eastern Davao or Eastern Davao Campaign until the end of the Second World War.
The native (and official) language spoken in this province are Kamayo(also known as Mandaya), Cebuano is also spoken here, and Chavacano de Davao being spoken by the people from Compostela Valley and Davao City.
Even some of the natives adhere to Christian faith (mostly Catholics), they are syncretic in some of their beliefs. Folklore beliefs include fairies (diwatas).
Homes are usually made out of wood, with bamboo figuring prominently in many rural abodes.