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
Marco Kroon years' research, recommended to Queen Beatrix of the Netherlands that Kroon be awarded the Military William Order for bravery shown during commando actions in Uruzgan. Queen Beatrix made Kroon a Knight (fourth class) of the Military William Order on 29 May 2009: the first time in 54 years that the honour had been given to an individual. In January 2010, Kroon and his girlfriend (aged 34) were named in a drugs case in The Netherlands. According to publications he was suspected of possession of drugs and of violating the gun law. A police investigation, which was sustained after two interrogations,