Brunei, officially the Nation of Brunei, the Abode of Peace (, Jawi: ), is a sovereign state located on the north coast of the island of Borneo in Southeast Asia. Apart from its coastline with the South China Sea, the country is completely surrounded by the Malaysian state of Sarawak. 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. Brunei's population was in . 

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. The maritime state was visited by Spain's Magellan Expedition in 1521 and fought against Spain in the 1578 Castilian War. 

During the 19th century, the Bruneian Empire began to decline. The Sultanate ceded Sarawak (Kuching) to James Brooke and installed him as the White Rajah, and it ceded Sabah to the British North Borneo Chartered Company. In 1888, Brunei became a British protectorate and was assigned a British resident as colonial manager in 1906. After the Japanese occupation during World War II, in 1959 a new constitution was written. In 1962, a small armed rebellion against the monarchy was ended with the help of the British.
Who controlled much of the areas at one point?
When?
How long was he in power?
What was a specific place he controlled?
Anywhere else?
Did a famous explorer visit there?
Who?
When?
What is the place of his visit called?
What is its official name?
Does it have another name?
What continent is it on?
In the west?
Where then?
What mostly surrounds it?
How many pieces is it split into?
When did it start to go downhill?
Who took over at that point?
Who occupied it in WW2?
What new document was created in 1959?
Sultan Bolkiah
Sultan Bolkiah
At the peak of the Bruneian Empire
At the peak of the Bruneian Empire
from 1485 to 1528
1485–1528
modern-day Sarawak
 modern-day Sarawak
Sabah
Sabah
yes
Spain's Magellan Expedition
Magellan
Magellan
1521
1521
The maritime state
The maritime state 
Brunei
Brunei
the Nation of Brunei
he Nation of Brunei
Asia
Asia
no
Southeast
in Southeast Asia
in Southeast Asia
the Malaysian state of Sarawak
the Malaysian state of Sarawak
two
 two 
the 19th century
the 19th century
James Brooke
James Brooke
the Japanese
the Japanese
a new constitution
a new constitution