30/06/2015: Demonetization of old Guinean franc banknotes
The old series of Guinean franc banknotes, denominated in 'Syli,' ceased to be legal tender, and only the new franc banknotes remained in circulation.
26/09/2012: Introduction of new Guinean franc coins
New coins denominated in the Guinean franc were introduced, replacing the previously used Guinean syli coins.
30/06/2010: Revaluation of the Guinean franc
The Guinean franc underwent a revaluation, with 1 new franc being equivalent to 10,000 old francs.
10/09/2008: Introduction of Birr Denominations
Ethiopia introduced new banknotes of different denominations in an effort to combat counterfeiting and improve security features.
30/06/1997: Introduction of new Guinean franc
A new series of Guinean franc banknotes, denominated in 'Syli,' was introduced as a replacement for the previous currency.
27/05/1991: Introduction of Birr Coins
Ethiopia introduced coins for the birr denominations, replacing the previous notes.
30/11/1985: Devaluation of the Guinean franc
The Guinean franc was devalued by 50%, leading to an economic crisis and high inflation.
17/09/1976: Introduction of New Birr
A new birr was introduced, replacing the previous Ethiopian birr and being equal to 100 old birr.
31/05/1971: Redenomination of the Guinean franc
The Guinean franc underwent a redenomination, with 1 new franc being equivalent to 10 old francs.
01/10/1959: Introduction of Guinean franc
The Guinean franc was introduced as the official currency of Guinea following its independence from France.
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.