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
Economic and Monetary Union of the European Union in June 1988, when an ad hoc committee (Delors Committee) of the central bank governors of the twelve member states, chaired by the President of the European Commission, Jacques Delors, was asked to propose a new timetable with clear, practical and realistic steps for creating an economic and monetary union. This way of working was derived from the Spaak method. The Delors report of 1989 set out a plan to introduce the EMU in three stages and it included the creation of institutions like the European System of Central Banks (ESCB), which would become responsible for formulating and implementing monetary