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.
27/04/2010: Adoption of new currency symbol
Sierra Leone adopts a new currency symbol for the leone (Le), representing its cultural heritage and national identity.
29/07/2003: Introduction of new leone notes
Sierra Leone introduces a new series of leone banknotes with enhanced security features to combat counterfeiting.
22/02/1996: Civil war ends
The Sierra Leonean Civil War comes to an end, providing an opportunity for economic stabilization and currency reform.
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.
29/04/1980: Coup d'etat
A military coup takes place in Sierra Leone, leading to economic instability and a decline in the value of the leone.
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.
15/07/1974: Redenomination of the leone
Sierra Leone redenominates its currency, replacing the old leone with a new leone at a ratio of 1:4.
04/11/1971: Introduction of decimal currency
Sierra Leone adopts a decimal currency system, replacing the pound with the leone as its new official currency.
08/06/1967: Link with Portuguese escudo reestablished
The Macanese pataca was once again pegged to the Portuguese escudo, ending the gold standard era.
27/04/1961: Independence of Sierra Leone
Sierra Leone gains independence from the United Kingdom, introducing the Sierra Leonean leone as its official currency.
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.
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.