20/12/2019: Macao–Hong Kong Financial Cooperation Agreement signed
The Macau and Hong Kong authorities signed a financial cooperation agreement to strengthen monetary and financial stability, impacting the value and role of the Macanese pataca.
10/09/2008: Introduction of Birr Denominations
Ethiopia introduced new banknotes of different denominations in an effort to combat counterfeiting and improve security features.
08/05/1995: Currency board system implemented
Macau adopted a currency board system, establishing a fixed exchange rate between the Macanese pataca and the Hong Kong dollar.
27/05/1991: Introduction of Birr Coins
Ethiopia introduced coins for the birr denominations, replacing the previous notes.
20/10/1977: Internationalization of the pataca
Macau allowed the international use and exchange of the Macanese pataca, strengthening its role as a stable and convertible currency.
17/09/1976: Introduction of New Birr
A new birr was introduced, replacing the previous Ethiopian birr and being equal to 100 old birr.
08/06/1967: Link with Portuguese escudo reestablished
The Macanese pataca was once again pegged to the Portuguese escudo, ending the gold standard era.
18/06/1948: Gold standard introduced
The Macanese pataca switched to the gold standard, with its value pegged to gold coins. The gold standard lasted until 1967.
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.
17/03/1906: Silver standard established
Macau adopted the silver standard for the pataca, linking its value to silver coins in circulation. This standard remained in place until 1948.
27/10/1901: Introduction of Macanese pataca
The Macanese pataca was first introduced as the official currency of Macau, replacing the Portuguese real. It was initially pegged to the Portuguese escudo.
14/02/1894: Introduction of Maria Theresa Thaler
Ethiopia adopted the Maria Theresa Thaler as the official currency, which remained in circulation until 1935.