200 euro note yellow colour scheme. The two hundred euro banknotes depict bridges and arches/doorways in Art Nouveau style (19th and 20th centuries). The €200 note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity. The new banknotes of the Europa series 200 euro banknote will start circulating on 28 May 2019. 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 was not introduced until
De facto currency De facto currency A de facto currency is a unit of money that is not legal tender in a country but is treated as such by most of the populace. The United States dollar and the European Union euro are the most common de facto currencies. Andorra used the euro unofficially prior to June 2013, at which point the euro became its official currency. The euro remains the de facto currency in Kosovo and Montenegro. Countries using the United States dollar as their de facto currency include Aruba and Cambodia, where most hotels, restaurants, and transportation are priced in dollars;