11/02/2020: Currency Devaluation
The Yemeni Rial witnessed another devaluation as the Central Bank of Yemen devalued the currency by 25% to ease foreign currency shortages and stabilize the economy.
13/10/2016: Central Bank Relocation
The internationally recognized government of Yemen relocated the Central Bank from Sana'a to Aden, causing further fragmentation in the value and availability of the Yemeni Rial.
16/09/2015: Houthi Takeover and Currency Instability
Following the Houthi rebel's takeover of the capital Sana'a, the Yemeni Rial faced further instability, resulting in hyperinflation and a depreciation of its value.
27/09/2009: Government Decision
The Yemeni government announced a 9.3% devaluation of the rial as a measure to cope with the economic crisis and declining oil revenues.
15/10/2006: New series of banknotes
Costa Rica introduced a new series of banknotes featuring enhanced security features to combat counterfeiting and modernize the colón currency.
04/05/1994: Civil War and Currency Devaluation
During the Yemeni Civil War, the Yemeni Rial experienced a significant devaluation, with the exchange rate reaching around 200 rials for 1 US dollar.
21/05/1991: Free-floating exchange rate
Costa Rica transitioned to a floating exchange rate regime, allowing the colón's value to be determined by market forces.
22/05/1990: Yemeni Unification
The Yemeni Rial became the official currency of the newly unified country of Yemen after the merger of the Yemen Arab Republic (North Yemen) and People's Democratic Republic of Yemen (South Yemen).
09/11/1961: Introduction of the Monetary Reform
Costa Rica implemented a monetary reform, replacing the old colón with a new one at a rate of 1 to 100, to combat inflation.
30/11/1949: Abolition of the army
After the abolition of the army, the Costa Rican government focused on economic development, leading to stable monetary policies for the colón.
26/08/1948: Currency Introduction
The Yemeni Rial (YER) was first introduced as the official currency of North Yemen, replacing the Yemeni Riyal at a rate of 1 rial = 1,000 Riyals.
14/12/1917: Establishment of the Central Bank of Costa Rica
The Central Bank of Costa Rica was established to oversee monetary policy, including the management of the colón.
09/04/1896: Adoption of the gold standard
Costa Rica adopted the gold standard, pegging the value of the colón to gold, leading to currency stability.
18/03/1850: Introduction of the Costa Rican colón
The Costa Rican colón was officially introduced as the currency of Costa Rica to replace the Spanish real.