06/05/2015: Pegged to the euro
The Bulgarian Lev officially became a currency pegged to the euro, maintaining a fixed exchange rate, on May 6, 2015.
10/09/2008: Introduction of Birr Denominations
Ethiopia introduced new banknotes of different denominations in an effort to combat counterfeiting and improve security features.
01/01/2002: Replacement of notes and coins
New series of notes and coins for the Bulgarian Lev were introduced, replacing the previous designs on January 1, 2002.
01/07/1999: Currency board arrangement
Bulgaria implemented a currency board arrangement, fixing the Bulgarian Lev to the euro at a rate of 1.95583 on July 1, 1999.
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.
15/09/1962: Introduction of the New Lev
The New Lev was introduced as a new currency in Bulgaria, replacing the Lev A, on September 15, 1962.
01/12/1952: Lev replaced by Lev A
The Bulgarian Lev was replaced by a new currency named Lev A on December 1, 1952 as a result of currency reform.
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.
14/10/1923: Hyperinflation
Bulgaria experienced severe hyperinflation, causing the value of the Lev currency to plummet during the period from 1923 to 1924.
14/02/1894: Introduction of Maria Theresa Thaler
Ethiopia adopted the Maria Theresa Thaler as the official currency, which remained in circulation until 1935.
01/04/1881: Introduction of the Lev
The Bulgarian Lev currency was introduced as the official currency of Bulgaria on April 1, 1881.