1990s
| Year | Date | Event |
| 1990 | 24 January | The 1990 Commonwealth Games open in Auckland, New Zealand. |
| 21 March | Namibia joins the Commonwealth upon being granted independence by South Africa. | |
| 1 July | Nigeria's Chief Emeka Anyaoku succeeds Shridath Ramphal as Commonwealth Secretary-General. | |
| 1991 | 16 October | The twelfth Commonwealth Heads of Government Meeting convenes in Harare, Zimbabwe. |
| 20 October | At the conclusion of the twelfth CHOGM, the assembled Commonwealth Heads of Government issue the Harare Declaration, establishing the core principles and values of the Commonwealth, detailing membership criteria, and redefining and reinforcing its purpose. It is considered, along with the 1971 Singapore Declaration, one of the two most important documents of the Commonwealth's constitution. | |
| 1993 | 21 October | The thirteenth Commonwealth Heads of Government Meeting convenes in Limassol, Cyprus. |
| 1994 | 18 August | The 1994 Commonwealth Games open in Victoria, Canada. The event marked South Africa's return to the Games after a 36 years absence. |
| 1995 | 1 July | Chief Emeka Anyaoku begins his second term as Commonwealth Secretary-General. |
| 10 November | The fourteenth Commonwealth Heads of Government Meeting convenes in Auckland, New Zealand. | |
| 12 November | The assembled Commonwealth Heads of Government agree to the Millbrook Commonwealth Action Programme on the Harare Declaration, designed to implement the Harare Declaration's affirmation of the Commonwealth's principles and membership criteria. | |
| 13 November | Cameroon joins the Commonwealth, having been granted independence by France in 1960, and joined by the former British colony of Southern Cameroons in 1961. | |
| Mozambique joins the Commonwealth. It is the first country to join the Commonwealth without having had constitutional ties to an existing member. | ||
| 1997 | 1 October | Fiji rejoins the Commonwealth. |
| 24 October | The fifteenth Commonwealth Heads of Government Meeting convenes in Edinburgh, the United Kingdom. | |
| 27 October | At the conclusion of the sixteenth CHOGM, the assembled Commonwealth Heads of Government issue the Edinburgh Declaration, codifying the Commonwealth's membership criteria. | |
| 1998 | 11 September | The 1998 Commonwealth Games open in Kuala Lumpur, Malaysia. It is the first Games to be held in Asia, and the first to be held outside the so-called 'White Commonwealth' since 1966. |
| 1999 | 29 May | The Commonwealth Ministerial Action Group lifts Nigeria's suspension from the Commonwealth. |
| 18 October | The Commonwealth Ministerial Action Group suspends Pakistan from the Commonwealth with immediate effect. | |
| 12 November | The sixteenth Commonwealth Heads of Government Meeting convenes in Durban, South Africa. Thabo Mbeki becomes the first Commonwealth Chairperson-in-Office. |
Read more about this topic: Timeline Of Commonwealth Of Nations History