Mark (currency) Germany was reunified in 1990. The German mark was replaced by the euro, first as an accounting currency on 1 January 1999, at a conversion rate of 1.95583 marks per euro. Thereafter, the mark-denominated notes and coins represented the euro at that conversion rate, and remained legal tender until 1 January 2002, when they were replaced by euro notes and coins. Germany mints its own German euro coins, but all euro coins are legal tender throughout the Eurozone. The remaining Convertible mark of Bosnia-Herzegovina is a currency that officially replaced the German mark as de facto currency of the ruptured
World currency unit have adopted the name "World Currency Unit". The Wocu (contraction of World Currency Unit) is a standardized basket of currencies — the national currencies of the 20 largest national economies measured by GDP, established in 2008. The basket is reweighed semi-annually according to the relative growth of the economies, whereby constituent currencies are replaced by other currencies should the size of the GDP be overtaken by that of another national economy. Conceived as an apolitical and global alternative to the ECU, it is used as a reference currency for global investors and companies seeking to mitigate bilateral exchange rate volatility.