It is separated into two parts by the Sarawak district of Limbang.Brunei is the only sovereign state completely on the island of Borneo; the remainder of the island's territory is divided between the nations of Malaysia and Indonesia. At the peak of the Bruneian Empire, Sultan Bolkiah (reigned 1485–1528) is alleged to have had control over most regions of Borneo, including modern-day Sarawak and Sabah, as well as the Sulu Archipelago off the northeast tip of Borneo, Seludong (modern-day Manila), and the islands off the northwest tip of Borneo.It has developed wealth from extensive petroleum and natural gas fields.Brunei has the second-highest Human Development Index among the Southeast Asian nations, after Singapore, and is classified as a "developed country".
In 1369, the Sulus attacked Po-ni, looting it of treasure and gold.
differ greatly from the generally accepted view of events.
What was called the Castilian War was seen as a heroic episode, with the Spaniards being driven out by Bendahara Sakam, purportedly a brother of the ruling sultan, and a thousand native warriors.
Brunei gained its independence from the United Kingdom on 1 January 1984.
Economic growth during the 1990s and 2000s, with the GDP increasing 56% from 1999 to 2008, transformed Brunei into an industrialised country.