Dayak people the Japanese Occupation, the Japanese referred Kaharingan as the religion of the Dayak people. During the New Order in the Suharto regime in 1980, the Kaharingan is registered as a form of Hinduism in Indonesia, as the Indonesian state only recognises 6 forms of religion i.e. Islam, Protestantism, Roman Catholicism, Hinduism, Buddhism and Confucianism respectively. The integration of Kaharingan with Hinduism is not due to the similarities in the theological system, but due to the fact that Kaharingan is the oldest belief in Kalimantan. Unlike the development in Indonesian Kalimantan, the Kaharingan is not recognised as a religion both in
Indonesian language nation that boasts more than 700 native languages and a vast array of ethnic groups, it plays an important unifying and cross-archipelagic role for the country. Use of the national language is abundant in the media, government bodies, schools, universities, workplaces, among members of the Indonesian upper-class or nobility and also in many other formal situations, although the 2010 Indonesian Census shows that only 19.94% of people over 5 years old speak mainly Indonesian at home. Standard and formal Indonesian is used in books and newspapers and on television/radio news broadcasts; however, few native Indonesian speakers use the formal language