Pre-Islamic era The Kalagans lived in communities called banwa. The banwas were usually located at the rivers and the river keys of Davao. Each banwa has its leader called a
datu. The datu is usually a man with strong political and physical leadership in the community. Before Islam came to Mindanao, the early Kalagans were believed to be animists and they believed that there was one supreme God called Tagallang, which means "creator". They also believed that all of nature like trees, stones, mountains, the river, and the ocean has a spirit, that they called
maguya. The Kalagan respected the
maguya by performing ceremonial rituals. The ones who perform the rituals are priests called
balyans which means
shaman or
healer or the ones who can contact the spirits by asking for cures for the sick, for the guidance and security of the tribe, and even fortune-telling. The balyans may either be a man or woman, and they are specialized in contacting the spiritual realm. Same as the
Mandayas, the Kalagan people contact the spiritual realm by performing a
kulintang and a ritual dance holding a
kasag, a native shield with bells surrounding it, while the balyans dance, the bells creating a sound as an activation of the spirits to enter the body of the balyan.
Sultanate era and beyond It is believed that Kagans were Islamized by the early 16th century by Muslim missionaries from their neighbouring tribes the
Maguindanaon. They intermarried and shared their culture with the Kagans and brought 4
Qurans to them for the guidance of the faith. These 4 Qurans still exist today and are owned by prominent families of the tribe. They follow the traditional
Sunni Shafié of Islam, however many of them remain
animist and still believe in the traditions and religion of their ancestors, practicing a mix of Islam and animism in their
adat. Some Kalagans have been converted to Christianity upon missionary work and contact with new Christian migrant neighbors from
Luzon and
Visayas during the early 20th century. == Language ==