Euro banknotes entered circulation on 23 September 2014. The full design of the Europa series 20 euro banknote was revealed on 24 February 2015, On 4 May 2016, the European Central Bank announced that the Europa series 500 euro banknote would not be released, due to fears of "facilitating the criminal activity". The old series will gradually be withdrawn. The ECB will announce "well in advance" when the old notes will lose their legal tender status. However, they will not lose their value and it will be possible to exchange them for new notes at Eurosystem central banks indefinitely. "A good design
Language and the euro it is actually written on the euro notes in Greek as . Also, the spelling (resulting in a plural ) on the notes could have confused other Europeans, who might read it as a string of Latin letters: "eypo". A plural form "evra", as if from a regular declinable neuter noun in "-o", is sometimes used in a jocular way. For the cent, the terms used in Greece are , plural ("leptó", plural "leptá"), a name used for small denominations of various ancient and modern Greek currencies, including the drachma (which the euro replaced). The word means 'minute' (literally "thin"),