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Buton (also Butung, Boeton or Button), is an island in Indonesia located off the southeast peninsula of Sulawesi. It covers roughly 4,408 square kilometers in area, or about the size of Madura; it is the 129th largest island in the world and Indonesia's 19th largest in area.
|Area||4,408 km2 (1,702 sq mi)|
|Highest elevation||1,100 m (3,600 ft)|
|Largest settlement||Baubau (pop. 137,118)|
|Ethnic groups||Butonese people|
- Not to be confused with Buton Island, Riau Islands, off Bintan.
In the precolonial era, the island, then usually known as Butung, was within the sphere of influence of Ternate. Especially in the sixteenth century, Buton served as an important secondary regional center within the Ternaten empire, controlling regional trade and collecting tribute to be sent to Ternate.
Sultan Murhum, the first Islamic monarch on the island, is remembered in the name of the island's major harbor, Murhum Harbor, in Baubau.
Its largest town is Baubau, where the Wolio and Cia-Cia languages are spoken. Major nearby islands include Wawonii (to the north), Muna and Kabaena (to the west) and Siumpu (to the southwest). The Tukangbesi Islands lie just to the east where Tukang Besi is spoken, and is separated by the Gulf of Kolowana Watabo (Teluk Kolowana Watabo).
The languages spoken on Buton include Wolio, Cia-Cia, various dialects of Muna, Tukang Besi, Kumbewaha, Lasalimu, Kamaru, Pancana, Busoa, Taloki, Kulisusu and Kioko. The Indonesian language, the national language of Indonesia, is also widely used and taught in schools.
The island has a massive reserve of natural asphalt and several other minerals. Asphalt from Buton can be utilized as bitumen modifiers  as well as a substitute for petroleum asphalt. As a result, natural asphalt can be used to reduce dependency on conventional fossil based resources.
Buton Island is administratively divided into three second level administrative divisions (Daerah Tingkat II): Baubau City, Buton Regency, Central Buton Regency, South Buton Regency and North Buton Regency. However, the eponymous archipelago is administered under an additional four regencies: Muna Regency, West Muna Regency, Wakatobi Regency, and (part of) Bombana Regency.
- Goodall, George (Editor)(1943) Philips' International Atlas London, George Philip and Son map 'East Indies' pp.91-92
- van den Berg, Rene. "Preliminary Notes on the Cia-Cia language (South Buton)". Excursies in Celebes. p. 305. ISBN 90-6718-032-7.
- "Ethnologue". Retrieved 2009-10-11.
- "Cia-Cia adopts Hangul to preserve spoken language". 7 August 2009.
- "Buton Asphalt Indonesia".