1841           Brunei ceded Sarawak to James Brooke
1846           Brunei ceded Labuan to Britain
1847           Brunei signed Trade Relations Treaty with Britain
1888           Brunei became a British-protected State
1906           British Resident appointed
1906-41     A new form of government emerged which included a State Council
1931           Exploration for oil commenced
1929           Oil was struck at Seria
1941-45     Japanese occupation during World War II
1950-67     Reign of Sultan Haji Omar 'Ali Saifuddien
1962           Armed rebellion put down
1967           Brunei issued its own currency
1967           The voluntary abdication of the 28th Sultan, His Highness Sir Muda Omar 'Ali Saifuddien Sa'adul Khairi Waddien (Al-Marhum Sultan Haji    Omar 'Ali Saifuddien Sa'adul Khairi Waddien)
1968           Coronation of His Majesty The Sultan and Yang Di-Pertuan
1970           The State capital, Brunei Town, was renamed Bandar Seri Begawan
1971           The 1959 Agreement was amended and brought up-to-date
1972           LNG plant began operation
1973           Deep Water Port opened in Muara
1973           Official opening of the world's largest LNG plant
1974           Brunei International Airport opened
1975           The launch of Royal Brunei Airlines
1979           Brunei and Britain signed the Treaty of Friendship and Co-operation
1984           Brunei resumed full political sovereignty
1984           Brunei joined ASEAN, OIC and the United Nations
1984           Brunei celebrated its first National Day
1985           University of Brunei Darussalam was formed
1986           The demise of Sultan Haji Omar 'Ali Saifuddien Sa'adul Khairi Waddien, His Majesty's father, the 28th Sultan.
1987           University of Brunei Darussalam opened
1988           Opening of the Malay Technology Museum
1989           The first convocation of University Brunei Darussalam
1990           The first Al-Hafiz of Brunei Darussalam
1991           The setting up of the Brunei Islamic Trust Fund (TAIB).
1992           Brunei joined Non Aligned Movements (NAM)
1992           Silver Jubilee of the reign of His Majesty Sultan Haji Hassanal Bolkiah Mu'izzaddin Waddaulah, Sultan and Yang Di-Pertuan of Brunei Darussalam
1998           Proclamation of His Royal Highess Prince Haji Al-Muhtadee Billah as the Crown Prince