Euro Currency Index summer of 2007, the index began to decline. On 6 February 2009 a value of 187.84 points was determined. In the following eight months, the European single currency rebounded from the lows. On 13 October 2009, the index rose by 208.45 points, near its historical high point. A financial crisis in several member states of the Euro zone in 2010 led to the outbreak of the Euro crisis. Particularly affected is Greece (see Greek government-debt crisis from 2010), but also other countries such as Ireland, Spain, Italy and Portugal. The weakness of the Euro against almost all global currencies caused
Mark (currency) and could be transferred by endorsement, and were accepted as payment. They could also be redeemed. This currency proved to be very stable. Following German unification in 1871, the country adopted the German gold mark (officially known just as the "mark") as its currency in 1873. The name was taken from the mark banco. Initially, the coins and banknotes of the various predecessor currencies, such as the , the , and the guilder, continued to circulate, and were treated as fixed multiples of the new unit of account, similarly to the introduction period of the euro between 1999 and 2002.