| 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 |
