Estonian kroon 1500 rubles to 150 krooni.) Initially, the Estonian kroon was pegged to the Deutsche Mark at a rate of 8 krooni = 1 Deutsche Mark. After the introduction of the euro the fixed exchange rate of 1.95583 DEM to EUR led to an exchange rate of 15.64664 krooni to the euro. On 28 June 2004, as Estonia joined the ERM II-system, the central parity of the Estonian kroon was revalued (by less than 0.001%) to 15.6466 krooni per euro. On 1 January 2011 the euro replaced the kroon as the official currency of Estonia. The kroon circulated alongside the euro
European Monetary System were used to keep the currencies within a narrow range. In the early 1990s the European Monetary System was strained by the differing economic policies and conditions of its members, especially the newly reunified Germany, and Britain (which had initially declined to join and only did so in 1990) permanently withdrew from the system in September 1992. Speculative attacks on the French Franc during the following year led to the so-called Brussels Compromise in August 1993 which established a new fluctuation band of +15%. European currency exchange rate stability has been one of the most important objectives of European policy