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.
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.
10/09/2008: Introduction of Birr Denominations
Ethiopia introduced new banknotes of different denominations in an effort to combat counterfeiting and improve security features.
18/03/1996: Change in currency regime
Brunei dollar became fully backed by foreign exchange reserves instead of gold.
27/05/1991: Introduction of Birr Coins
Ethiopia introduced coins for the birr denominations, replacing the previous notes.
17/09/1976: Introduction of New Birr
A new birr was introduced, replacing the previous Ethiopian birr and being equal to 100 old birr.
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.
08/07/1945: Decree to Change Birr Decimalization
Ethiopia changed the birr decimalization from talari and ghersh to dollars and cents.
31/12/1931: Introduction of Ethiopian birr
The Ethiopian birr was introduced as the official currency, replacing the Maria Theresa Thaler.
05/07/1931: Ethiopian Monetary Authority Established
The Ethiopian Monetary Authority was established to regulate the country's monetary system and issue currency.
14/02/1894: Introduction of Maria Theresa Thaler
Ethiopia adopted the Maria Theresa Thaler as the official currency, which remained in circulation until 1935.