10 euro note about 1.5 years before it is replaced due to wear. It is the second-smallest note measuring 127x67 mm with a pink colour scheme. The ten euro banknotes depict bridges and arches/doorways in Romanesque architecture (between the 11th and 12th centuries). The ten euro note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity. The euro was founded on 1 January 1999, when it became the currency of over 300 million people in Europe. For the first three years of its existence it was an invisible currency, only used in accountancy. Euro cash
European Currency Unit accept the European Union legislation to that effect. However, for abundant caution, several foreign jurisdictions adopted legislation to ensure a smooth transition. Of particular importance, the U.S. states of Illinois and New York adopted legislation to ensure a large proportion of international financial contracts recognized the euro as the successor of the ECU. Although the acronym ECU is formed from English words, "écu" is also the name of an ancient French coin. That was one reason that a new name was devised for its successor currency, "euro", which was felt not to favour any single language. The currency's symbol, ₠