(the Kayan Mandau swords are the main item of exchange), boat builders and carpenters. Loom, weaving, production of tans, arts, wood carving, making of masks and pottery are also developed. Social structure Traditionally, they live in long houses on river banks. Their settlement consists of one or several long houses as long as 300 meters, which can accommodate up to 100 families (400–600 people) and consist of a common veranda and rooms. Residents of a long house constitute a tribal community. The Kayan people are divided into three endogamous caste-estate groups; "house owning group" or aristocrat (ipun uma or keta'u), community members or commoners (panyin) and slaves (lupau). Among the nobility, marriages are usually outside of the community, often with other tribes; while community members and slaves usually marry within the community. The leader is usually elected from the nobility class (in the 19th century, he also served as a military leader). The settlement is bi-localized, and the filiation is bilateral, while the system of kinship is of the English model. Religion The Kayan people developed a religion and a complex cult (bounty hunting and human sacrifices that disappeared at the beginning of the 20th century, as well as shamanism). The core event was the feast of collected heads (mamat), during which warrior initiations and funeral ceremonies were held. In the 20th century, some Kayan people were converted to Christianity. Culture Traditional Kayan song Alam Lening (Dayak Kayaan Mendalam, Kalbar) Lung Kayaan Mendalam Notable people Francisca Luhong James - Miss Universe Malaysia 2020 and a part-time model. She is of mixed Kayan, Kenyah and Iban lineage. References Further reading Into the Art of Borneo: The Kenyah-Kayan Tradition Ethnic groups in Indonesia Ethnic groups in Sarawak Dayak people Headhunting