01/01/2020: New Currency Symbol
A new currency symbol for the dobra, resembling the letters 'STD' with horizontal lines through them, was introduced for official use.
24/05/2018: Dobra Pegged to Euro
The dobra's exchange rate was pegged to the euro, aiming to stabilize the currency and boost economic cooperation with the European Union.
01/01/2016: Introduction of Polymer Banknotes
São Tomé and Príncipe started issuing polymer banknotes as a means to enhance durability and reduce counterfeiting of the dobra.
15/01/2015: Removal of Minimum Exchange Rate
The Swiss National Bank unexpectedly abandoned the minimum exchange rate, causing the Swiss franc (CHF) to surge in value.
06/09/2011: Implementation of Minimum Exchange Rate
The Swiss National Bank imposed a minimum exchange rate pegging the Swiss franc (CHF) to the Euro to prevent excessive appreciation.
01/01/2010: Currency Redenomination
The third dobra was introduced, with 1 new dobra equalling 1,000 old dobras, aiming to simplify transactions and boost confidence in the currency.
13/09/1999: Introduction of Euro
Switzerland decided not to join the Eurozone and maintain the Swiss franc (CHF) as its official currency.
01/01/1997: Introduction of the New Dobra
A new currency, the 'second dobra,' was introduced at a rate of 1,000 to 1 to combat hyperinflation and stabilize the economy.
24/12/1979: First Currency Devaluation
The first devaluation of the dobra occurred, reducing its value by 53% as a result of economic instability and inflation.
30/06/1977: Introduction of the Dobra
The São Tomé and Príncipe dobra was introduced as the official currency of the country after gaining independence from Portugal.
08/05/1973: Floatation of Swiss Franc
Switzerland abandoned the fixed exchange rate system, allowing the Swiss franc (CHF) to float freely against other currencies.
01/05/1936: Introduction of Swiss National Bank
The Swiss National Bank was established as the central bank responsible for issuing and managing the Swiss franc (CHF).
24/11/1907: Gold Standard Referendum
Switzerland voted to adopt the gold standard, making the Swiss franc (CHF) fully convertible into gold.
06/06/1850: Currency Act of 1850
The Swiss franc (CHF) was introduced as the official currency of Switzerland.