01/01/2022: Removal of monarchy symbol
Brunei currency no longer featured the portrait of the Sultan as part of efforts to modernize the banknotes.
01/01/2020: Transition to Polymer Banknotes
Polymer banknotes were introduced in Guyana, enhancing the durability and security features of the Guyanese dollar.
21/07/2017: Commencement of New Series Polymer Banknotes
New series of polymer banknotes with modern designs entered circulation.
05/05/2013: Upgrade of polymer banknotes
Introduction of new polymer banknotes with enhanced security features.
01/07/2011: Introduction of Brunei-Indonesia Currency Agreement
Brunei dollar became interchangeable with Indonesian rupiah in specified regions.
03/02/2003: Redenomination of the Currency
The Guyanese dollar underwent a redenomination, with old banknotes replaced by new notes at a rate of 1,000 old dollars to 1 new dollar.
18/03/1996: Change in currency regime
Brunei dollar became fully backed by foreign exchange reserves instead of gold.
05/10/1992: Resumption of Banking System
The resumption of the banking system in Guyana significantly improved the stability and accessibility of the Guyanese dollar.
12/06/1973: Establishment of Brunei Currency Board
Currency Board assumed responsibility for the issuance and management of Brunei dollar.
27/07/1967: Introduction of Brunei and Singapore Currency Interchangeability Agreement
Brunei and Singapore dollars became interchangeable at par.
26/05/1966: Independence of Guyana
Following Guyana's independence from Britain, the currency was renamed from British Guiana dollar to Guyanese dollar.
12/09/1951: Currency Board Established
A Currency Board was established to manage the British Guiana dollar, ensuring its stability and convertibility.
06/08/1917: Currency Act of 1917
The British Guiana dollar was revalued at a rate of 4.80 dollars to 1 U.S. dollar, following the Currency Act of 1917.
18/01/1839: Introduction of the British Guiana dollar
British Guiana dollar introduced as the official currency of British Guiana, replacing the Spanish and Portuguese coins previously in circulation.