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.
06/05/2015: Pegged to the euro
The Bulgarian Lev officially became a currency pegged to the euro, maintaining a fixed exchange rate, on May 6, 2015.
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.
01/01/2002: Replacement of notes and coins
New series of notes and coins for the Bulgarian Lev were introduced, replacing the previous designs on January 1, 2002.
01/07/1999: Currency board arrangement
Bulgaria implemented a currency board arrangement, fixing the Bulgarian Lev to the euro at a rate of 1.95583 on July 1, 1999.
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.
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.
15/09/1962: Introduction of the New Lev
The New Lev was introduced as a new currency in Bulgaria, replacing the Lev A, on September 15, 1962.
01/12/1952: Lev replaced by Lev A
The Bulgarian Lev was replaced by a new currency named Lev A on December 1, 1952 as a result of currency reform.
14/10/1923: Hyperinflation
Bulgaria experienced severe hyperinflation, causing the value of the Lev currency to plummet during the period from 1923 to 1924.
01/04/1881: Introduction of the Lev
The Bulgarian Lev currency was introduced as the official currency of Bulgaria on April 1, 1881.