24/10/2018: 50 Ngultrum commemorative banknote issued
A special commemorative banknote of 50 Ngultrum was issued to celebrate the 50th Birth Anniversary of His Majesty Jigme Khesar Namgyel Wangchuck.
28/10/2013: 1000 Ngultrum banknote issued
A new denomination of 1000 Ngultrum banknote was introduced, reflecting the growing economy and need for larger denomination currency.
09/06/2011: Second series of Ngultrum banknotes issued
The second series of Bhutanese Ngultrum banknotes were issued, featuring improved security features and updated designs representing Bhutan's unique culture.
21/11/2006: Introduction of polymer banknotes
Polymer banknotes were introduced in Bhutan, replacing the older paper banknotes, to enhance durability and security of the currency.
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.
04/03/1992: First series of Ngultrum banknotes issued
The first series of Bhutanese Ngultrum banknotes were issued in denominations of 1, 5, 10, 20, 50, and 100 Ngultrum, showcasing Bhutanese culture and landmarks.
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.
31/12/1975: Establishment of the Royal Monetary Authority of Bhutan
The Royal Monetary Authority of Bhutan was established as the central bank of Bhutan, responsible for managing the Ngultrum currency.
31/05/1974: Introduction of the Bhutanese Ngultrum
The Bhutanese Ngultrum was introduced as the official currency of Bhutan to replace the Indian Rupee.
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.
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.