Estonian kroon until the Soviet invasion in 1940 and Estonia's subsequent incorporation into the Soviet Union when it was replaced by the Soviet ruble. After Estonia regained its independence, the kroon was reintroduced in 1992. The kroon became the currency of Estonia on 1 September 1928 after having been a unit of account since 1924. It replaced the mark at a rate of 100 mark = 1 kroon. The kroon was subdivided into 100 sent. In 1924, the kroon was pegged to the Swedish krona at par, with a gold standard of 2480 kroon = 1 kilogram of pure gold. The standard
Karsten Kroon top ten of Tirreno–Adriatico and the Tour of Flanders. He helped Fränk Schleck win the Amstel Gold Race by disrupting the chase when Schleck attacked; Kroon finished fourth. Kroon finally finished on the podium, in La Flèche Wallonne, third in front of Schleck. He also came second in the 2009 Amstel Gold Race, just behind Serguei Ivanov. In 2010, Kroon joined , but returned to for the 2012 season. On 24 April 2018, it was reported that Kroon had confessed to doping for "a short period during my career". He added: "I was a professional cyclist in a very difficult