50 euro note euro banknote is about four years before it is replaced due to wear. It is the fourth smallest note, measuring 140 mm × 77 mm, and has an orange colour scheme. The note depicts bridges and arches/doorways in the Renaissance era (15th and 16th centuries). The €50 note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity. The full design of the Europa series €50 banknote was revealed on 5 July 2016. The new 50 note was released on 4 April 2017. The euro was founded on 1 January 1999, when it
Bulgaria and the euro banknotes. The second series of notes (beginning with the €5 note issued from 2013) includes the term "ЕВРО" and the abbreviation "ЕЦБ" (short for "Европейска централна банка", the Bulgarian name of the European Central Bank). The first series had only the standard Latin alphabet "EURO" and the Greek "ΕΥΡΩ". The euro coins only have the Latin "EURO" on their common side. Greek coins include the alternative Greek spelling on the national (obverse) side. Bulgarian coins, therefore, may follow suit, having "EURO" on one side and "ЕВРО" on the other. The plural of евро in Bulgarian varies in spoken language –