01/01/2020: Transition to Polymer Banknotes
Polymer banknotes were introduced in Guyana, enhancing the durability and security features of the Guyanese dollar.
10/09/2008: Introduction of Birr Denominations
Ethiopia introduced new banknotes of different denominations in an effort to combat counterfeiting and improve security features.
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.
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.
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.
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.
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.
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.
14/02/1894: Introduction of Maria Theresa Thaler
Ethiopia adopted the Maria Theresa Thaler as the official currency, which remained in circulation until 1935.
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.