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
Ron Kroon Ron Kroon Ronald "Ron" Kroon (17 September 1942, Amsterdam – 12 July 2001, Huizen) was a Dutch freestyle swimmer who won two bronze medals at the 1962 European Aquatics Championships. He also competed at the 1960 and 1964 Summer Olympics with the best achievement of 8th place in the 4×100 meters medley relay. Between 1960 and 1964 he was four times national champion and set 12 national records in the 100 m freestyle event. He was the first Dutch athlete to swim 100 meters within 55 seconds. After his swimming career, Kroon became a photographer with photograph press agency Anefo