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North Kalimantan

Province in Kalimantan, Indonesia

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Through World War II and Muslims

Formed on 25 October 2012, North Kalimantan was separated from the province of East Kalimantan in order to reduce development disparity and Malaysia's influence over the territory. North Kalimantan covers 69,901 square kilometres and consists of four regencies and one city. It had a population of 524,656 at the 2010 Census and 701,784 at the 2020 Census, making it at that time the least populous province in Indonesia, until the subsequent creation in 2022 of the new provinces of South Papua (which became the new least populous province), West Papua and Southwest Papua. The official estimate as at mid 2025 was 749,370 people (comprising 393,130 males and 356,240 females). Most of the province is sparsely populated.

History

North Kalimantan is the territory of the Sultanate of Bulungan, which was founded by a group of coastal Kayan. Around the 16th century, a Kayan princess called, Asung Luwan, married a visiting nobleman from Brunei, called Datuk Mencang. From this line a princely state was established, centered in Tanjung Selor, which ruled territory now comprising Bulungan, Tana Tidung, Malinau, Nunukan, Tarakan, and some part of Sabah. Bulungan was a vassal of the Berau Sultanate, which in turn was a vassal of the Kingdom of Kutai. During subsequent wars, the territory fell into the hands of Brunei and after agreements were made with the Sultanate of Sulu, the territory officially came under Sulu control. In 1777, the royal family converted to Islam, with the king Wira Amir changing his name to Aji Muhammad, and title to Sultan Amirul Mukminin. In 1853, The Dutch signed a Politiek Contract to impose their sovereignty over the Bulungan kingdom, Sulu was not able to respond as it was also in a war with Spain. Then in 1881, the British North Borneo Company (BNBC) was formed, placing North Borneo (present-day Sabah) under British jurisdiction, and claiming the region of Tawau. While under Dutch control, the sultan was forced to hand over control of the Bahau river, Pujungan river, and Apo Kayan. After long negotiation with the British, the Dutch recognised the British borders in 1915 which became the modern border between Sabah and North Kalimantan. During World War II, the Japanese occupying forces had an agreement with Bulungan under which they shared natural resources and in exchange the region largely escaped the Romusha system.

Bultiken Tragedy

In 1963, during the Indonesia–Malaysia confrontation, the Sultanate of Bulungan's position on the formation of Malaysia was ambiguous. In April 1964, it was reported that a document was found proving the ties between Bulungan aristocracy and Malaysia and in conflict would support the formation of Malaysia and in turn join Malaysia. On 24 April 1964, leader of regional military commands Mulawarman, Brigadier General Soeharjo ordered the capture and killing of Bulungan aristocracy. On 2 July 1964, Lt B. Simatupang and Captain Buntaran were received cordially by the Sultan of Bulungan. By 3 July 1964, the palace was invaded by units of Brawijaya 517, the palace was burned and looted, and members of the royal family killed. According to Burhan Djabier in his 1991 book, East Kalimantan: The Decline of a Commercial Aristocracy, the central TNI leadership did not act or replace him because, Brigadier General Soeharjo was a known leftist and politically connected. Most leftists and the PKI were hostile to royals causing parallels the East Sumatra revolution. This is also the position of the sultanate, as according to Dato' Seri Pangeran Sanusi Hussin, the PKI was responsible for the burning of the royal palace and ethnic cleansing.

The surviving royal family fled and became citizens of Malaysia. In 2017, the royal family announced that they were in the process of becoming Indonesian citizens.

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